Finding the Fourth Proportional to 140,107, 193,347.68 and 89,806.12

Step by Step Solution

1. Step 1: Write the proportion equation
   140,107 : 193,347.68 = 89,806.12 : x
2. Step 2: Convert to fraction form
   140,107/193,347.68 = 89,806.12/x
3. Step 3: Cross multiply
   140,107x = 193,347.68 × 89,806.12
4. Step 4: Simplify right side
   140,107x = 17,363,804,951.80
5. Step 5: Solve for x
   x = 17,363,804,951.80/140,107
6. Step 6: Final answer
   x = 123,932.46