Finding the Fourth Proportional to 85,510.77, 128,293.82 and 41,131.74

Step by Step Solution

1. Step 1: Write the proportion equation
   85,510.77 : 128,293.82 = 41,131.74 : x
2. Step 2: Convert to fraction form
   85,510.77/128,293.82 = 41,131.74/x
3. Step 3: Cross multiply
   85,510.77x = 128,293.82 × 41,131.74
4. Step 4: Simplify right side
   85,510.77x = 5,276,948,047.85
5. Step 5: Solve for x
   x = 5,276,948,047.85/85,510.77
6. Step 6: Final answer
   x = 61,710.92