Finding the Fourth Proportional to 17,002.62, 25,510.68 and 7,640.10

Step by Step Solution

1. Step 1: Write the proportion equation
   17,002.62 : 25,510.68 = 7,640.10 : x
2. Step 2: Convert to fraction form
   17,002.62/25,510.68 = 7,640.10/x
3. Step 3: Cross multiply
   17,002.62x = 25,510.68 × 7,640.10
4. Step 4: Simplify right side
   17,002.62x = 194,904,146.27
5. Step 5: Solve for x
   x = 194,904,146.27/17,002.62
6. Step 6: Final answer
   x = 11,463.18