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Finding the Fourth Proportional to 25,768.80, 38,566.80 and 17,992.80

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Solution

The fourth proportional to 25,768.80, 38,566.80 and 17,992.80 is: 26,928.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,768.80 : 38,566.80 = 17,992.80 : x
  2. Step 2: Convert to fraction form
    25,768.80/38,566.80 = 17,992.80/x
  3. Step 3: Cross multiply
    25,768.80x = 38,566.80 × 17,992.80
  4. Step 4: Simplify right side
    25,768.80x = 693,924,719.04
  5. Step 5: Solve for x
    x = 693,924,719.04/25,768.80
  6. Step 6: Final answer
    x = 26,928.87

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