Finding the Fourth Proportional to 140,429.57, 193,791.57 and 76,767.17

Step by Step Solution

1. Step 1: Write the proportion equation
   140,429.57 : 193,791.57 = 76,767.17 : x
2. Step 2: Convert to fraction form
   140,429.57/193,791.57 = 76,767.17/x
3. Step 3: Cross multiply
   140,429.57x = 193,791.57 × 76,767.17
4. Step 4: Simplify right side
   140,429.57x = 14,876,830,398.76
5. Step 5: Solve for x
   x = 14,876,830,398.76/140,429.57
6. Step 6: Final answer
   x = 105,938.02