Finding the Fourth Proportional to 140,139.73, 193,262.20 and 92,309.95

Step by Step Solution

1. Step 1: Write the proportion equation
   140,139.73 : 193,262.20 = 92,309.95 : x
2. Step 2: Convert to fraction form
   140,139.73/193,262.20 = 92,309.95/x
3. Step 3: Cross multiply
   140,139.73x = 193,262.20 × 92,309.95
4. Step 4: Simplify right side
   140,139.73x = 17,840,024,018.89
5. Step 5: Solve for x
   x = 17,840,024,018.89/140,139.73
6. Step 6: Final answer
   x = 127,301.69