Finding the Fourth Proportional to 17,820.55, 24,592.02 and 9,862.78

Step by Step Solution

1. Step 1: Write the proportion equation
   17,820.55 : 24,592.02 = 9,862.78 : x
2. Step 2: Convert to fraction form
   17,820.55/24,592.02 = 9,862.78/x
3. Step 3: Cross multiply
   17,820.55x = 24,592.02 × 9,862.78
4. Step 4: Simplify right side
   17,820.55x = 242,545,683.02
5. Step 5: Solve for x
   x = 242,545,683.02/17,820.55
6. Step 6: Final answer
   x = 13,610.45