Finding the Fourth Proportional to 250,083.97, 345,115.89 and 136,906.72

Step by Step Solution

1. Step 1: Write the proportion equation
   250,083.97 : 345,115.89 = 136,906.72 : x
2. Step 2: Convert to fraction form
   250,083.97/345,115.89 = 136,906.72/x
3. Step 3: Cross multiply
   250,083.97x = 345,115.89 × 136,906.72
4. Step 4: Simplify right side
   250,083.97x = 47,248,684,519.78
5. Step 5: Solve for x
   x = 47,248,684,519.78/250,083.97
6. Step 6: Final answer
   x = 188,931.28