Finding the Fourth Proportional to 140,081.39, 193,328.89 and 79,661.11

Step by Step Solution

1. Step 1: Write the proportion equation
   140,081.39 : 193,328.89 = 79,661.11 : x
2. Step 2: Convert to fraction form
   140,081.39/193,328.89 = 79,661.11/x
3. Step 3: Cross multiply
   140,081.39x = 193,328.89 × 79,661.11
4. Step 4: Simplify right side
   140,081.39x = 15,400,793,972.47
5. Step 5: Solve for x
   x = 15,400,793,972.47/140,081.39
6. Step 6: Final answer
   x = 109,941.76