Finding the Fourth Proportional to 252,105.83, 378,217.49 and 83,613.83

Step by Step Solution

1. Step 1: Write the proportion equation
   252,105.83 : 378,217.49 = 83,613.83 : x
2. Step 2: Convert to fraction form
   252,105.83/378,217.49 = 83,613.83/x
3. Step 3: Cross multiply
   252,105.83x = 378,217.49 × 83,613.83
4. Step 4: Simplify right side
   252,105.83x = 31,624,212,493.82
5. Step 5: Solve for x
   x = 31,624,212,493.82/252,105.83
6. Step 6: Final answer
   x = 125,440.23