Finding the Fourth Proportional to 9,531.34, 13,153.23 and 5,339.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,531.34 : 13,153.23 = 5,339.50 : x
2. Step 2: Convert to fraction form
   9,531.34/13,153.23 = 5,339.50/x
3. Step 3: Cross multiply
   9,531.34x = 13,153.23 × 5,339.50
4. Step 4: Simplify right side
   9,531.34x = 70,231,671.59
5. Step 5: Solve for x
   x = 70,231,671.59/9,531.34
6. Step 6: Final answer
   x = 7,368.50