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Finding the Fourth Proportional to 85,476.60, 128,227.05 and 26,317.08

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Solution

The fourth proportional to 85,476.60, 128,227.05 and 26,317.08 is: 39,479.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,476.60 : 128,227.05 = 26,317.08 : x
  2. Step 2: Convert to fraction form
    85,476.60/128,227.05 = 26,317.08/x
  3. Step 3: Cross multiply
    85,476.60x = 128,227.05 × 26,317.08
  4. Step 4: Simplify right side
    85,476.60x = 3,374,561,533.01
  5. Step 5: Solve for x
    x = 3,374,561,533.01/85,476.60
  6. Step 6: Final answer
    x = 39,479.36

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