Finding the Fourth Proportional to 9,561.28, 13,193.22 and 5,312.02

Step by Step Solution

1. Step 1: Write the proportion equation
   9,561.28 : 13,193.22 = 5,312.02 : x
2. Step 2: Convert to fraction form
   9,561.28/13,193.22 = 5,312.02/x
3. Step 3: Cross multiply
   9,561.28x = 13,193.22 × 5,312.02
4. Step 4: Simplify right side
   9,561.28x = 70,082,648.50
5. Step 5: Solve for x
   x = 70,082,648.50/9,561.28
6. Step 6: Final answer
   x = 7,329.84