Finding the Fourth Proportional to 9,576.26, 13,216.50 and 5,385.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,576.26 : 13,216.50 = 5,385.32 : x
2. Step 2: Convert to fraction form
   9,576.26/13,216.50 = 5,385.32/x
3. Step 3: Cross multiply
   9,576.26x = 13,216.50 × 5,385.32
4. Step 4: Simplify right side
   9,576.26x = 71,175,081.78
5. Step 5: Solve for x
   x = 71,175,081.78/9,576.26
6. Step 6: Final answer
   x = 7,432.45