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Finding the Fourth Proportional to 17,978.44, 26,932.07 and 8,477.75

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Solution

The fourth proportional to 17,978.44, 26,932.07 and 8,477.75 is: 12,699.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,978.44 : 26,932.07 = 8,477.75 : x
  2. Step 2: Convert to fraction form
    17,978.44/26,932.07 = 8,477.75/x
  3. Step 3: Cross multiply
    17,978.44x = 26,932.07 × 8,477.75
  4. Step 4: Simplify right side
    17,978.44x = 228,323,356.44
  5. Step 5: Solve for x
    x = 228,323,356.44/17,978.44
  6. Step 6: Final answer
    x = 12,699.84

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