Finding the Fourth Proportional to 293,076.99, 439,553.94 and 82,665.72

Step by Step Solution

1. Step 1: Write the proportion equation
   293,076.99 : 439,553.94 = 82,665.72 : x
2. Step 2: Convert to fraction form
   293,076.99/439,553.94 = 82,665.72/x
3. Step 3: Cross multiply
   293,076.99x = 439,553.94 × 82,665.72
4. Step 4: Simplify right side
   293,076.99x = 36,336,042,928.94
5. Step 5: Solve for x
   x = 36,336,042,928.94/293,076.99
6. Step 6: Final answer
   x = 123,981.22