Finding the Fourth Proportional to 17,660, 24,369.72 and 9,702.02

Step by Step Solution

1. Step 1: Write the proportion equation
   17,660 : 24,369.72 = 9,702.02 : x
2. Step 2: Convert to fraction form
   17,660/24,369.72 = 9,702.02/x
3. Step 3: Cross multiply
   17,660x = 24,369.72 × 9,702.02
4. Step 4: Simplify right side
   17,660x = 236,435,510.83
5. Step 5: Solve for x
   x = 236,435,510.83/17,660
6. Step 6: Final answer
   x = 13,388.19