Finding the Fourth Proportional to 9,469.88, 13,068.50 and 5,221.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,469.88 : 13,068.50 = 5,221.10 : x
2. Step 2: Convert to fraction form
   9,469.88/13,068.50 = 5,221.10/x
3. Step 3: Cross multiply
   9,469.88x = 13,068.50 × 5,221.10
4. Step 4: Simplify right side
   9,469.88x = 68,231,853.90
5. Step 5: Solve for x
   x = 68,231,853.90/9,469.88
6. Step 6: Final answer
   x = 7,205.15