Finding the Fourth Proportional to 82,386.92, 113,685.54 and 50,557.16

Step by Step Solution

1. Step 1: Write the proportion equation
   82,386.92 : 113,685.54 = 50,557.16 : x
2. Step 2: Convert to fraction form
   82,386.92/113,685.54 = 50,557.16/x
3. Step 3: Cross multiply
   82,386.92x = 113,685.54 × 50,557.16
4. Step 4: Simplify right side
   82,386.92x = 5,747,618,035.47
5. Step 5: Solve for x
   x = 5,747,618,035.47/82,386.92
6. Step 6: Final answer
   x = 69,763.72