Finding the Fourth Proportional to 8,960.26, 12,363.13 and 5,422.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,960.26 : 12,363.13 = 5,422.72 : x
2. Step 2: Convert to fraction form
   8,960.26/12,363.13 = 5,422.72/x
3. Step 3: Cross multiply
   8,960.26x = 12,363.13 × 5,422.72
4. Step 4: Simplify right side
   8,960.26x = 67,041,792.31
5. Step 5: Solve for x
   x = 67,041,792.31/8,960.26
6. Step 6: Final answer
   x = 7,482.13