Finding the Fourth Proportional to 9,565.52, 13,200.72 and 5,316.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,565.52 : 13,200.72 = 5,316.80 : x
2. Step 2: Convert to fraction form
   9,565.52/13,200.72 = 5,316.80/x
3. Step 3: Cross multiply
   9,565.52x = 13,200.72 × 5,316.80
4. Step 4: Simplify right side
   9,565.52x = 70,185,588.10
5. Step 5: Solve for x
   x = 70,185,588.10/9,565.52
6. Step 6: Final answer
   x = 7,337.35