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Finding the Fourth Proportional to 85,653.37, 128,492.39 and 26,493.64

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Solution

The fourth proportional to 85,653.37, 128,492.39 and 26,493.64 is: 39,744.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,653.37 : 128,492.39 = 26,493.64 : x
  2. Step 2: Convert to fraction form
    85,653.37/128,492.39 = 26,493.64/x
  3. Step 3: Cross multiply
    85,653.37x = 128,492.39 × 26,493.64
  4. Step 4: Simplify right side
    85,653.37x = 3,404,231,123.40
  5. Step 5: Solve for x
    x = 3,404,231,123.40/85,653.37
  6. Step 6: Final answer
    x = 39,744.28

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