Finding the Fourth Proportional to 12,798.12, 17,661.78 and 7,492.44

Step by Step Solution

1. Step 1: Write the proportion equation
   12,798.12 : 17,661.78 = 7,492.44 : x
2. Step 2: Convert to fraction form
   12,798.12/17,661.78 = 7,492.44/x
3. Step 3: Cross multiply
   12,798.12x = 17,661.78 × 7,492.44
4. Step 4: Simplify right side
   12,798.12x = 132,329,826.94
5. Step 5: Solve for x
   x = 132,329,826.94/12,798.12
6. Step 6: Final answer
   x = 10,339.79