Finding the Fourth Proportional to 9,352.72, 12,906.30 and 5,372.92

Step by Step Solution

1. Step 1: Write the proportion equation
   9,352.72 : 12,906.30 = 5,372.92 : x
2. Step 2: Convert to fraction form
   9,352.72/12,906.30 = 5,372.92/x
3. Step 3: Cross multiply
   9,352.72x = 12,906.30 × 5,372.92
4. Step 4: Simplify right side
   9,352.72x = 69,344,517.40
5. Step 5: Solve for x
   x = 69,344,517.40/9,352.72
6. Step 6: Final answer
   x = 7,414.37