Finding the Fourth Proportional to 9,613.85, 13,267.11 and 5,422.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,613.85 : 13,267.11 = 5,422.10 : x
2. Step 2: Convert to fraction form
   9,613.85/13,267.11 = 5,422.10/x
3. Step 3: Cross multiply
   9,613.85x = 13,267.11 × 5,422.10
4. Step 4: Simplify right side
   9,613.85x = 71,935,503.68
5. Step 5: Solve for x
   x = 71,935,503.68/9,613.85
6. Step 6: Final answer
   x = 7,482.49