Finding the Fourth Proportional to 9,124.79, 12,592.31 and 5,348.07

Step by Step Solution

1. Step 1: Write the proportion equation
   9,124.79 : 12,592.31 = 5,348.07 : x
2. Step 2: Convert to fraction form
   9,124.79/12,592.31 = 5,348.07/x
3. Step 3: Cross multiply
   9,124.79x = 12,592.31 × 5,348.07
4. Step 4: Simplify right side
   9,124.79x = 67,344,528.60
5. Step 5: Solve for x
   x = 67,344,528.60/9,124.79
6. Step 6: Final answer
   x = 7,380.40