Finding the Fourth Proportional to 9,224.28, 12,730.56 and 5,245.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,224.28 : 12,730.56 = 5,245.98 : x
2. Step 2: Convert to fraction form
   9,224.28/12,730.56 = 5,245.98/x
3. Step 3: Cross multiply
   9,224.28x = 12,730.56 × 5,245.98
4. Step 4: Simplify right side
   9,224.28x = 66,784,263.15
5. Step 5: Solve for x
   x = 66,784,263.15/9,224.28
6. Step 6: Final answer
   x = 7,240.05