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Finding the Fourth Proportional to 78,027.91, 107,677.74 and 42,217.13

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Solution

The fourth proportional to 78,027.91, 107,677.74 and 42,217.13 is: 58,259.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,027.91 : 107,677.74 = 42,217.13 : x
  2. Step 2: Convert to fraction form
    78,027.91/107,677.74 = 42,217.13/x
  3. Step 3: Cross multiply
    78,027.91x = 107,677.74 × 42,217.13
  4. Step 4: Simplify right side
    78,027.91x = 4,545,845,147.69
  5. Step 5: Solve for x
    x = 4,545,845,147.69/78,027.91
  6. Step 6: Final answer
    x = 58,259.22

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