Finding the Fourth Proportional to 9,372.02, 12,934.80 and 5,392.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,372.02 : 12,934.80 = 5,392.86 : x
2. Step 2: Convert to fraction form
   9,372.02/12,934.80 = 5,392.86/x
3. Step 3: Cross multiply
   9,372.02x = 12,934.80 × 5,392.86
4. Step 4: Simplify right side
   9,372.02x = 69,755,565.53
5. Step 5: Solve for x
   x = 69,755,565.53/9,372.02
6. Step 6: Final answer
   x = 7,442.96