Finding the Fourth Proportional to 82,209.72, 113,407.61 and 49,935.76

Step by Step Solution

1. Step 1: Write the proportion equation
   82,209.72 : 113,407.61 = 49,935.76 : x
2. Step 2: Convert to fraction form
   82,209.72/113,407.61 = 49,935.76/x
3. Step 3: Cross multiply
   82,209.72x = 113,407.61 × 49,935.76
4. Step 4: Simplify right side
   82,209.72x = 5,663,094,661.94
5. Step 5: Solve for x
   x = 5,663,094,661.94/82,209.72
6. Step 6: Final answer
   x = 68,885.95