Finding the Fourth Proportional to 82,205.79, 113,402.20 and 49,931.82

Step by Step Solution

1. Step 1: Write the proportion equation
   82,205.79 : 113,402.20 = 49,931.82 : x
2. Step 2: Convert to fraction form
   82,205.79/113,402.20 = 49,931.82/x
3. Step 3: Cross multiply
   82,205.79x = 113,402.20 × 49,931.82
4. Step 4: Simplify right side
   82,205.79x = 5,662,378,071.12
5. Step 5: Solve for x
   x = 5,662,378,071.12/82,205.79
6. Step 6: Final answer
   x = 68,880.53