Finding the Fourth Proportional to 121,674.52, 182,067.72 and 71,778.52

Step by Step Solution

1. Step 1: Write the proportion equation
   121,674.52 : 182,067.72 = 71,778.52 : x
2. Step 2: Convert to fraction form
   121,674.52/182,067.72 = 71,778.52/x
3. Step 3: Cross multiply
   121,674.52x = 182,067.72 × 71,778.52
4. Step 4: Simplify right side
   121,674.52x = 13,068,551,481.37
5. Step 5: Solve for x
   x = 13,068,551,481.37/121,674.52
6. Step 6: Final answer
   x = 107,405.82