Finding the Fourth Proportional to 16,256.61, 24,382.43 and 5,161.86

Step by Step Solution

1. Step 1: Write the proportion equation
   16,256.61 : 24,382.43 = 5,161.86 : x
2. Step 2: Convert to fraction form
   16,256.61/24,382.43 = 5,161.86/x
3. Step 3: Cross multiply
   16,256.61x = 24,382.43 × 5,161.86
4. Step 4: Simplify right side
   16,256.61x = 125,858,664.31
5. Step 5: Solve for x
   x = 125,858,664.31/16,256.61
6. Step 6: Final answer
   x = 7,742.00