Finding the Fourth Proportional to 16,824.42, 25,240.23 and 5,138.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,824.42 : 25,240.23 = 5,138.50 : x
2. Step 2: Convert to fraction form
   16,824.42/25,240.23 = 5,138.50/x
3. Step 3: Cross multiply
   16,824.42x = 25,240.23 × 5,138.50
4. Step 4: Simplify right side
   16,824.42x = 129,696,921.86
5. Step 5: Solve for x
   x = 129,696,921.86/16,824.42
6. Step 6: Final answer
   x = 7,708.85