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Finding the Fourth Proportional to 87,251.31, 120,473.73 and 63,434.88

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Solution

The fourth proportional to 87,251.31, 120,473.73 and 63,434.88 is: 87,588.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,251.31 : 120,473.73 = 63,434.88 : x
  2. Step 2: Convert to fraction form
    87,251.31/120,473.73 = 63,434.88/x
  3. Step 3: Cross multiply
    87,251.31x = 120,473.73 × 63,434.88
  4. Step 4: Simplify right side
    87,251.31x = 7,642,236,605.70
  5. Step 5: Solve for x
    x = 7,642,236,605.70/87,251.31
  6. Step 6: Final answer
    x = 87,588.79

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