Finding the Fourth Proportional to 9,376.31, 12,937.20 and 5,598.79

Step by Step Solution

1. Step 1: Write the proportion equation
   9,376.31 : 12,937.20 = 5,598.79 : x
2. Step 2: Convert to fraction form
   9,376.31/12,937.20 = 5,598.79/x
3. Step 3: Cross multiply
   9,376.31x = 12,937.20 × 5,598.79
4. Step 4: Simplify right side
   9,376.31x = 72,432,665.99
5. Step 5: Solve for x
   x = 72,432,665.99/9,376.31
6. Step 6: Final answer
   x = 7,725.07