Finding the Fourth Proportional to 140,105, 193,344.92 and 89,804.12

Step by Step Solution

1. Step 1: Write the proportion equation
   140,105 : 193,344.92 = 89,804.12 : x
2. Step 2: Convert to fraction form
   140,105/193,344.92 = 89,804.12/x
3. Step 3: Cross multiply
   140,105x = 193,344.92 × 89,804.12
4. Step 4: Simplify right side
   140,105x = 17,363,170,397.07
5. Step 5: Solve for x
   x = 17,363,170,397.07/140,105
6. Step 6: Final answer
   x = 123,929.70