Finding the Fourth Proportional to 16,253.91, 24,381.78 and 5,161.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,253.91 : 24,381.78 = 5,161.50 : x
2. Step 2: Convert to fraction form
   16,253.91/24,381.78 = 5,161.50/x
3. Step 3: Cross multiply
   16,253.91x = 24,381.78 × 5,161.50
4. Step 4: Simplify right side
   16,253.91x = 125,846,557.47
5. Step 5: Solve for x
   x = 125,846,557.47/16,253.91
6. Step 6: Final answer
   x = 7,742.54