Finding the Fourth Proportional to 85,574.83, 128,307.57 and 41,113.12

Step by Step Solution

1. Step 1: Write the proportion equation
   85,574.83 : 128,307.57 = 41,113.12 : x
2. Step 2: Convert to fraction form
   85,574.83/128,307.57 = 41,113.12/x
3. Step 3: Cross multiply
   85,574.83x = 128,307.57 × 41,113.12
4. Step 4: Simplify right side
   85,574.83x = 5,275,124,522.32
5. Step 5: Solve for x
   x = 5,275,124,522.32/85,574.83
6. Step 6: Final answer
   x = 61,643.41