Finding the Fourth Proportional to 82,727.90, 124,143.15 and 43,313.30

Step by Step Solution

1. Step 1: Write the proportion equation
   82,727.90 : 124,143.15 = 43,313.30 : x
2. Step 2: Convert to fraction form
   82,727.90/124,143.15 = 43,313.30/x
3. Step 3: Cross multiply
   82,727.90x = 124,143.15 × 43,313.30
4. Step 4: Simplify right side
   82,727.90x = 5,377,049,498.90
5. Step 5: Solve for x
   x = 5,377,049,498.90/82,727.90
6. Step 6: Final answer
   x = 64,996.81