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Finding the Fourth Proportional to 76,328.07, 105,384.69 and 47,658.93

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Solution

The fourth proportional to 76,328.07, 105,384.69 and 47,658.93 is: 65,801.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,328.07 : 105,384.69 = 47,658.93 : x
  2. Step 2: Convert to fraction form
    76,328.07/105,384.69 = 47,658.93/x
  3. Step 3: Cross multiply
    76,328.07x = 105,384.69 × 47,658.93
  4. Step 4: Simplify right side
    76,328.07x = 5,022,521,563.78
  5. Step 5: Solve for x
    x = 5,022,521,563.78/76,328.07
  6. Step 6: Final answer
    x = 65,801.76

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