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Finding the Fourth Proportional to 10,700.78, 16,051.83 and 4,126.88

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Solution

The fourth proportional to 10,700.78, 16,051.83 and 4,126.88 is: 6,190.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,700.78 : 16,051.83 = 4,126.88 : x
  2. Step 2: Convert to fraction form
    10,700.78/16,051.83 = 4,126.88/x
  3. Step 3: Cross multiply
    10,700.78x = 16,051.83 × 4,126.88
  4. Step 4: Simplify right side
    10,700.78x = 66,243,976.19
  5. Step 5: Solve for x
    x = 66,243,976.19/10,700.78
  6. Step 6: Final answer
    x = 6,190.57

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