Finding the Fourth Proportional to 12,790.72, 17,650.72 and 7,125.33

Step by Step Solution

1. Step 1: Write the proportion equation
   12,790.72 : 17,650.72 = 7,125.33 : x
2. Step 2: Convert to fraction form
   12,790.72/17,650.72 = 7,125.33/x
3. Step 3: Cross multiply
   12,790.72x = 17,650.72 × 7,125.33
4. Step 4: Simplify right side
   12,790.72x = 125,767,204.74
5. Step 5: Solve for x
   x = 125,767,204.74/12,790.72
6. Step 6: Final answer
   x = 9,832.69