Finding the Fourth Proportional to 17,818.88, 24,587.52 and 9,861

Step by Step Solution

1. Step 1: Write the proportion equation
   17,818.88 : 24,587.52 = 9,861 : x
2. Step 2: Convert to fraction form
   17,818.88/24,587.52 = 9,861/x
3. Step 3: Cross multiply
   17,818.88x = 24,587.52 × 9,861
4. Step 4: Simplify right side
   17,818.88x = 242,457,534.72
5. Step 5: Solve for x
   x = 242,457,534.72/17,818.88
6. Step 6: Final answer
   x = 13,606.78