Finding the Fourth Proportional to 17,860.48, 24,647.42 and 9,902.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,860.48 : 24,647.42 = 9,902.50 : x
2. Step 2: Convert to fraction form
   17,860.48/24,647.42 = 9,902.50/x
3. Step 3: Cross multiply
   17,860.48x = 24,647.42 × 9,902.50
4. Step 4: Simplify right side
   17,860.48x = 244,071,076.55
5. Step 5: Solve for x
   x = 244,071,076.55/17,860.48
6. Step 6: Final answer
   x = 13,665.43