Finding the Fourth Proportional to 9,366.56, 12,925.20 and 5,174.24

Step by Step Solution

1. Step 1: Write the proportion equation
   9,366.56 : 12,925.20 = 5,174.24 : x
2. Step 2: Convert to fraction form
   9,366.56/12,925.20 = 5,174.24/x
3. Step 3: Cross multiply
   9,366.56x = 12,925.20 × 5,174.24
4. Step 4: Simplify right side
   9,366.56x = 66,878,086.85
5. Step 5: Solve for x
   x = 66,878,086.85/9,366.56
6. Step 6: Final answer
   x = 7,140.09