Finding the Fourth Proportional to 12,782.16, 17,635.32 and 7,192.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,782.16 : 17,635.32 = 7,192.08 : x
2. Step 2: Convert to fraction form
   12,782.16/17,635.32 = 7,192.08/x
3. Step 3: Cross multiply
   12,782.16x = 17,635.32 × 7,192.08
4. Step 4: Simplify right side
   12,782.16x = 126,834,632.27
5. Step 5: Solve for x
   x = 126,834,632.27/12,782.16
6. Step 6: Final answer
   x = 9,922.79