Finding the Fourth Proportional to 8,293.70, 12,422.33 and 7,200.20

Step by Step Solution

1. Step 1: Write the proportion equation
   8,293.70 : 12,422.33 = 7,200.20 : x
2. Step 2: Convert to fraction form
   8,293.70/12,422.33 = 7,200.20/x
3. Step 3: Cross multiply
   8,293.70x = 12,422.33 × 7,200.20
4. Step 4: Simplify right side
   8,293.70x = 89,443,224.47
5. Step 5: Solve for x
   x = 89,443,224.47/8,293.70
6. Step 6: Final answer
   x = 10,784.48