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Finding the Fourth Proportional to 40,878.12, 61,317.03 and 11,295.90

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Solution

The fourth proportional to 40,878.12, 61,317.03 and 11,295.90 is: 16,943.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,878.12 : 61,317.03 = 11,295.90 : x
  2. Step 2: Convert to fraction form
    40,878.12/61,317.03 = 11,295.90/x
  3. Step 3: Cross multiply
    40,878.12x = 61,317.03 × 11,295.90
  4. Step 4: Simplify right side
    40,878.12x = 692,631,039.18
  5. Step 5: Solve for x
    x = 692,631,039.18/40,878.12
  6. Step 6: Final answer
    x = 16,943.81

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