Finding the Fourth Proportional to 9,531.32, 13,153.25 and 5,339.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,531.32 : 13,153.25 = 5,339.57 : x
2. Step 2: Convert to fraction form
   9,531.32/13,153.25 = 5,339.57/x
3. Step 3: Cross multiply
   9,531.32x = 13,153.25 × 5,339.57
4. Step 4: Simplify right side
   9,531.32x = 70,232,672.40
5. Step 5: Solve for x
   x = 70,232,672.40/9,531.32
6. Step 6: Final answer
   x = 7,368.62