Finding the Fourth Proportional to 12,790.72, 17,651.26 and 7,484.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,790.72 : 17,651.26 = 7,484.52 : x
2. Step 2: Convert to fraction form
   12,790.72/17,651.26 = 7,484.52/x
3. Step 3: Cross multiply
   12,790.72x = 17,651.26 × 7,484.52
4. Step 4: Simplify right side
   12,790.72x = 132,111,208.50
5. Step 5: Solve for x
   x = 132,111,208.50/12,790.72
6. Step 6: Final answer
   x = 10,328.68