Finding the Fourth Proportional to 9,372.86, 12,934.94 and 5,393.99

Step by Step Solution

1. Step 1: Write the proportion equation
   9,372.86 : 12,934.94 = 5,393.99 : x
2. Step 2: Convert to fraction form
   9,372.86/12,934.94 = 5,393.99/x
3. Step 3: Cross multiply
   9,372.86x = 12,934.94 × 5,393.99
4. Step 4: Simplify right side
   9,372.86x = 69,770,885.82
5. Step 5: Solve for x
   x = 69,770,885.82/9,372.86
6. Step 6: Final answer
   x = 7,443.93