Finding the Fourth Proportional to 85,228.97, 117,572.72 and 65,050.83

Step by Step Solution

1. Step 1: Write the proportion equation
   85,228.97 : 117,572.72 = 65,050.83 : x
2. Step 2: Convert to fraction form
   85,228.97/117,572.72 = 65,050.83/x
3. Step 3: Cross multiply
   85,228.97x = 117,572.72 × 65,050.83
4. Step 4: Simplify right side
   85,228.97x = 7,648,202,696.10
5. Step 5: Solve for x
   x = 7,648,202,696.10/85,228.97
6. Step 6: Final answer
   x = 89,737.13