Finding the Fourth Proportional to 82,401.91, 113,723.11 and 50,138.87

Step by Step Solution

1. Step 1: Write the proportion equation
   82,401.91 : 113,723.11 = 50,138.87 : x
2. Step 2: Convert to fraction form
   82,401.91/113,723.11 = 50,138.87/x
3. Step 3: Cross multiply
   82,401.91x = 113,723.11 × 50,138.87
4. Step 4: Simplify right side
   82,401.91x = 5,701,948,387.25
5. Step 5: Solve for x
   x = 5,701,948,387.25/82,401.91
6. Step 6: Final answer
   x = 69,196.80