Finding the Fourth Proportional to 9,128.43, 12,598.43 and 5,150.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,128.43 : 12,598.43 = 5,150.52 : x
2. Step 2: Convert to fraction form
   9,128.43/12,598.43 = 5,150.52/x
3. Step 3: Cross multiply
   9,128.43x = 12,598.43 × 5,150.52
4. Step 4: Simplify right side
   9,128.43x = 64,888,439.93
5. Step 5: Solve for x
   x = 64,888,439.93/9,128.43
6. Step 6: Final answer
   x = 7,108.39