Finding the Fourth Proportional to 9,531.45, 13,153.37 and 5,339.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,531.45 : 13,153.37 = 5,339.61 : x
2. Step 2: Convert to fraction form
   9,531.45/13,153.37 = 5,339.61/x
3. Step 3: Cross multiply
   9,531.45x = 13,153.37 × 5,339.61
4. Step 4: Simplify right side
   9,531.45x = 70,233,839.29
5. Step 5: Solve for x
   x = 70,233,839.29/9,531.45
6. Step 6: Final answer
   x = 7,368.64