Finding the Fourth Proportional to 82,200.89, 113,425.07 and 49,918.72

Step by Step Solution

1. Step 1: Write the proportion equation
   82,200.89 : 113,425.07 = 49,918.72 : x
2. Step 2: Convert to fraction form
   82,200.89/113,425.07 = 49,918.72/x
3. Step 3: Cross multiply
   82,200.89x = 113,425.07 × 49,918.72
4. Step 4: Simplify right side
   82,200.89x = 5,662,034,310.31
5. Step 5: Solve for x
   x = 5,662,034,310.31/82,200.89
6. Step 6: Final answer
   x = 68,880.45