Finding the Fourth Proportional to 121,707.27, 182,116.83 and 71,811.27

Step by Step Solution

1. Step 1: Write the proportion equation
   121,707.27 : 182,116.83 = 71,811.27 : x
2. Step 2: Convert to fraction form
   121,707.27/182,116.83 = 71,811.27/x
3. Step 3: Cross multiply
   121,707.27x = 182,116.83 × 71,811.27
4. Step 4: Simplify right side
   121,707.27x = 13,078,040,850.67
5. Step 5: Solve for x
   x = 13,078,040,850.67/121,707.27
6. Step 6: Final answer
   x = 107,454.89