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Finding the Fourth Proportional to 105,586.27, 158,400.09 and 46,421.78

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Solution

The fourth proportional to 105,586.27, 158,400.09 and 46,421.78 is: 69,641.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,586.27 : 158,400.09 = 46,421.78 : x
  2. Step 2: Convert to fraction form
    105,586.27/158,400.09 = 46,421.78/x
  3. Step 3: Cross multiply
    105,586.27x = 158,400.09 × 46,421.78
  4. Step 4: Simplify right side
    105,586.27x = 7,353,213,337.96
  5. Step 5: Solve for x
    x = 7,353,213,337.96/105,586.27
  6. Step 6: Final answer
    x = 69,641.76

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