Finding the Fourth Proportional to 140,081.43, 193,285.94 and 83,498.07

Step by Step Solution

1. Step 1: Write the proportion equation
   140,081.43 : 193,285.94 = 83,498.07 : x
2. Step 2: Convert to fraction form
   140,081.43/193,285.94 = 83,498.07/x
3. Step 3: Cross multiply
   140,081.43x = 193,285.94 × 83,498.07
4. Step 4: Simplify right side
   140,081.43x = 16,139,002,530.65
5. Step 5: Solve for x
   x = 16,139,002,530.65/140,081.43
6. Step 6: Final answer
   x = 115,211.58