Finding the Fourth Proportional to 82,057.82, 123,102.16 and 56,519.93

Step by Step Solution

1. Step 1: Write the proportion equation
   82,057.82 : 123,102.16 = 56,519.93 : x
2. Step 2: Convert to fraction form
   82,057.82/123,102.16 = 56,519.93/x
3. Step 3: Cross multiply
   82,057.82x = 123,102.16 × 56,519.93
4. Step 4: Simplify right side
   82,057.82x = 6,957,725,632.50
5. Step 5: Solve for x
   x = 6,957,725,632.50/82,057.82
6. Step 6: Final answer
   x = 84,790.53