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Finding the Fourth Proportional to 92,712.60, 139,068.90 and 82,798.20

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Solution

The fourth proportional to 92,712.60, 139,068.90 and 82,798.20 is: 124,197.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,712.60 : 139,068.90 = 82,798.20 : x
  2. Step 2: Convert to fraction form
    92,712.60/139,068.90 = 82,798.20/x
  3. Step 3: Cross multiply
    92,712.60x = 139,068.90 × 82,798.20
  4. Step 4: Simplify right side
    92,712.60x = 11,514,654,595.98
  5. Step 5: Solve for x
    x = 11,514,654,595.98/92,712.60
  6. Step 6: Final answer
    x = 124,197.30

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