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Finding the Fourth Proportional to 92,415.12, 138,631.41 and 25,855.26

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Solution

The fourth proportional to 92,415.12, 138,631.41 and 25,855.26 is: 38,785.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,415.12 : 138,631.41 = 25,855.26 : x
  2. Step 2: Convert to fraction form
    92,415.12/138,631.41 = 25,855.26/x
  3. Step 3: Cross multiply
    92,415.12x = 138,631.41 × 25,855.26
  4. Step 4: Simplify right side
    92,415.12x = 3,584,351,149.72
  5. Step 5: Solve for x
    x = 3,584,351,149.72/92,415.12
  6. Step 6: Final answer
    x = 38,785.33

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