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Finding the Fourth Proportional to 85,245.78, 127,864.05 and 26,081.44

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Solution

The fourth proportional to 85,245.78, 127,864.05 and 26,081.44 is: 39,120.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,245.78 : 127,864.05 = 26,081.44 : x
  2. Step 2: Convert to fraction form
    85,245.78/127,864.05 = 26,081.44/x
  3. Step 3: Cross multiply
    85,245.78x = 127,864.05 × 26,081.44
  4. Step 4: Simplify right side
    85,245.78x = 3,334,878,548.23
  5. Step 5: Solve for x
    x = 3,334,878,548.23/85,245.78
  6. Step 6: Final answer
    x = 39,120.75

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