Finding the Fourth Proportional to 85,573.08, 128,304.95 and 41,111.37

Step by Step Solution

1. Step 1: Write the proportion equation
   85,573.08 : 128,304.95 = 41,111.37 : x
2. Step 2: Convert to fraction form
   85,573.08/128,304.95 = 41,111.37/x
3. Step 3: Cross multiply
   85,573.08x = 128,304.95 × 41,111.37
4. Step 4: Simplify right side
   85,573.08x = 5,274,792,066.72
5. Step 5: Solve for x
   x = 5,274,792,066.72/85,573.08
6. Step 6: Final answer
   x = 61,640.79