Finding the Fourth Proportional to 132,042.39, 182,241.78 and 78,357

Step by Step Solution

1. Step 1: Write the proportion equation
   132,042.39 : 182,241.78 = 78,357 : x
2. Step 2: Convert to fraction form
   132,042.39/182,241.78 = 78,357/x
3. Step 3: Cross multiply
   132,042.39x = 182,241.78 × 78,357
4. Step 4: Simplify right side
   132,042.39x = 14,279,919,155.46
5. Step 5: Solve for x
   x = 14,279,919,155.46/132,042.39
6. Step 6: Final answer
   x = 108,146.48