Finding the Fourth Proportional to 9,422.15, 13,002.05 and 5,230.13

Step by Step Solution

1. Step 1: Write the proportion equation
   9,422.15 : 13,002.05 = 5,230.13 : x
2. Step 2: Convert to fraction form
   9,422.15/13,002.05 = 5,230.13/x
3. Step 3: Cross multiply
   9,422.15x = 13,002.05 × 5,230.13
4. Step 4: Simplify right side
   9,422.15x = 68,002,359.83
5. Step 5: Solve for x
   x = 68,002,359.83/9,422.15
6. Step 6: Final answer
   x = 7,217.29