Finding the Fourth Proportional to 9,373.92, 12,935.60 and 5,647.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,373.92 : 12,935.60 = 5,647.20 : x
2. Step 2: Convert to fraction form
   9,373.92/12,935.60 = 5,647.20/x
3. Step 3: Cross multiply
   9,373.92x = 12,935.60 × 5,647.20
4. Step 4: Simplify right side
   9,373.92x = 73,049,920.32
5. Step 5: Solve for x
   x = 73,049,920.32/9,373.92
6. Step 6: Final answer
   x = 7,792.89