Finding the Fourth Proportional to 17,855.38, 24,641.87 and 9,900.17

Step by Step Solution

1. Step 1: Write the proportion equation
   17,855.38 : 24,641.87 = 9,900.17 : x
2. Step 2: Convert to fraction form
   17,855.38/24,641.87 = 9,900.17/x
3. Step 3: Cross multiply
   17,855.38x = 24,641.87 × 9,900.17
4. Step 4: Simplify right side
   17,855.38x = 243,958,702.12
5. Step 5: Solve for x
   x = 243,958,702.12/17,855.38
6. Step 6: Final answer
   x = 13,663.04