Finding the Fourth Proportional to 83,072.89, 124,617.04 and 64,373.85

Step by Step Solution

1. Step 1: Write the proportion equation
   83,072.89 : 124,617.04 = 64,373.85 : x
2. Step 2: Convert to fraction form
   83,072.89/124,617.04 = 64,373.85/x
3. Step 3: Cross multiply
   83,072.89x = 124,617.04 × 64,373.85
4. Step 4: Simplify right side
   83,072.89x = 8,022,079,107.34
5. Step 5: Solve for x
   x = 8,022,079,107.34/83,072.89
6. Step 6: Final answer
   x = 96,566.75