Finding the Fourth Proportional to 7,002.64, 10,494.60 and 5,145.04

Step by Step Solution

1. Step 1: Write the proportion equation
   7,002.64 : 10,494.60 = 5,145.04 : x
2. Step 2: Convert to fraction form
   7,002.64/10,494.60 = 5,145.04/x
3. Step 3: Cross multiply
   7,002.64x = 10,494.60 × 5,145.04
4. Step 4: Simplify right side
   7,002.64x = 53,995,136.78
5. Step 5: Solve for x
   x = 53,995,136.78/7,002.64
6. Step 6: Final answer
   x = 7,710.68