Finding the Fourth Proportional to 82,661.72, 123,995.82 and 43,192.04

Step by Step Solution

1. Step 1: Write the proportion equation
   82,661.72 : 123,995.82 = 43,192.04 : x
2. Step 2: Convert to fraction form
   82,661.72/123,995.82 = 43,192.04/x
3. Step 3: Cross multiply
   82,661.72x = 123,995.82 × 43,192.04
4. Step 4: Simplify right side
   82,661.72x = 5,355,632,417.27
5. Step 5: Solve for x
   x = 5,355,632,417.27/82,661.72
6. Step 6: Final answer
   x = 64,789.75