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Finding the Fourth Proportional to 26,492.70, 39,739.05 and 16,638.90

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Solution

The fourth proportional to 26,492.70, 39,739.05 and 16,638.90 is: 24,958.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,492.70 : 39,739.05 = 16,638.90 : x
  2. Step 2: Convert to fraction form
    26,492.70/39,739.05 = 16,638.90/x
  3. Step 3: Cross multiply
    26,492.70x = 39,739.05 × 16,638.90
  4. Step 4: Simplify right side
    26,492.70x = 661,214,079.05
  5. Step 5: Solve for x
    x = 661,214,079.05/26,492.70
  6. Step 6: Final answer
    x = 24,958.35

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