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Finding the Fourth Proportional to 78,558.17, 117,855.71 and 25,967.65

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Solution

The fourth proportional to 78,558.17, 117,855.71 and 25,967.65 is: 38,957.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,558.17 : 117,855.71 = 25,967.65 : x
  2. Step 2: Convert to fraction form
    78,558.17/117,855.71 = 25,967.65/x
  3. Step 3: Cross multiply
    78,558.17x = 117,855.71 × 25,967.65
  4. Step 4: Simplify right side
    78,558.17x = 3,060,435,827.78
  5. Step 5: Solve for x
    x = 3,060,435,827.78/78,558.17
  6. Step 6: Final answer
    x = 38,957.58

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