Finding the Fourth Proportional to 80,931.83, 121,421.43 and 41,516.42

Step by Step Solution

1. Step 1: Write the proportion equation
   80,931.83 : 121,421.43 = 41,516.42 : x
2. Step 2: Convert to fraction form
   80,931.83/121,421.43 = 41,516.42/x
3. Step 3: Cross multiply
   80,931.83x = 121,421.43 × 41,516.42
4. Step 4: Simplify right side
   80,931.83x = 5,040,983,084.88
5. Step 5: Solve for x
   x = 5,040,983,084.88/80,931.83
6. Step 6: Final answer
   x = 62,286.78