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Finding the Fourth Proportional to 78,032.25, 107,684.55 and 42,222.17

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Solution

The fourth proportional to 78,032.25, 107,684.55 and 42,222.17 is: 58,266.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,032.25 : 107,684.55 = 42,222.17 : x
  2. Step 2: Convert to fraction form
    78,032.25/107,684.55 = 42,222.17/x
  3. Step 3: Cross multiply
    78,032.25x = 107,684.55 × 42,222.17
  4. Step 4: Simplify right side
    78,032.25x = 4,546,675,376.47
  5. Step 5: Solve for x
    x = 4,546,675,376.47/78,032.25
  6. Step 6: Final answer
    x = 58,266.62

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