Finding the Fourth Proportional to 12,792.99, 17,648.65 and 7,485.47

Step by Step Solution

1. Step 1: Write the proportion equation
   12,792.99 : 17,648.65 = 7,485.47 : x
2. Step 2: Convert to fraction form
   12,792.99/17,648.65 = 7,485.47/x
3. Step 3: Cross multiply
   12,792.99x = 17,648.65 × 7,485.47
4. Step 4: Simplify right side
   12,792.99x = 132,108,440.12
5. Step 5: Solve for x
   x = 132,108,440.12/12,792.99
6. Step 6: Final answer
   x = 10,326.63