Finding the Fourth Proportional to 12,253.87, 18,382.63 and 5,680.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,253.87 : 18,382.63 = 5,680.72 : x
2. Step 2: Convert to fraction form
   12,253.87/18,382.63 = 5,680.72/x
3. Step 3: Cross multiply
   12,253.87x = 18,382.63 × 5,680.72
4. Step 4: Simplify right side
   12,253.87x = 104,426,573.89
5. Step 5: Solve for x
   x = 104,426,573.89/12,253.87
6. Step 6: Final answer
   x = 8,521.93