Finding the Fourth Proportional to 12,407.96, 18,601.47 and 5,382.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,407.96 : 18,601.47 = 5,382.69 : x
2. Step 2: Convert to fraction form
   12,407.96/18,601.47 = 5,382.69/x
3. Step 3: Cross multiply
   12,407.96x = 18,601.47 × 5,382.69
4. Step 4: Simplify right side
   12,407.96x = 100,125,946.55
5. Step 5: Solve for x
   x = 100,125,946.55/12,407.96
6. Step 6: Final answer
   x = 8,069.49