Finding the Fourth Proportional to 17,816.47, 24,585.70 and 9,858.30

Step by Step Solution

1. Step 1: Write the proportion equation
   17,816.47 : 24,585.70 = 9,858.30 : x
2. Step 2: Convert to fraction form
   17,816.47/24,585.70 = 9,858.30/x
3. Step 3: Cross multiply
   17,816.47x = 24,585.70 × 9,858.30
4. Step 4: Simplify right side
   17,816.47x = 242,373,083.38
5. Step 5: Solve for x
   x = 242,373,083.38/17,816.47
6. Step 6: Final answer
   x = 13,603.88