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Finding the Fourth Proportional to 76,092.75, 105,008.36 and 42,558.75

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Solution

The fourth proportional to 76,092.75, 105,008.36 and 42,558.75 is: 58,731.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,092.75 : 105,008.36 = 42,558.75 : x
  2. Step 2: Convert to fraction form
    76,092.75/105,008.36 = 42,558.75/x
  3. Step 3: Cross multiply
    76,092.75x = 105,008.36 × 42,558.75
  4. Step 4: Simplify right side
    76,092.75x = 4,469,024,328.36
  5. Step 5: Solve for x
    x = 4,469,024,328.36/76,092.75
  6. Step 6: Final answer
    x = 58,731.28

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