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Finding the Fourth Proportional to 92,612.88, 138,105.90 and 91,770.84

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Solution

The fourth proportional to 92,612.88, 138,105.90 and 91,770.84 is: 136,850.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,612.88 : 138,105.90 = 91,770.84 : x
  2. Step 2: Convert to fraction form
    92,612.88/138,105.90 = 91,770.84/x
  3. Step 3: Cross multiply
    92,612.88x = 138,105.90 × 91,770.84
  4. Step 4: Simplify right side
    92,612.88x = 12,674,094,451.96
  5. Step 5: Solve for x
    x = 12,674,094,451.96/92,612.88
  6. Step 6: Final answer
    x = 136,850.24

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