Finding the Fourth Proportional to 9,335.31, 12,882.24 and 5,357.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,335.31 : 12,882.24 = 5,357.76 : x
2. Step 2: Convert to fraction form
   9,335.31/12,882.24 = 5,357.76/x
3. Step 3: Cross multiply
   9,335.31x = 12,882.24 × 5,357.76
4. Step 4: Simplify right side
   9,335.31x = 69,019,950.18
5. Step 5: Solve for x
   x = 69,019,950.18/9,335.31
6. Step 6: Final answer
   x = 7,393.43