Finding the Fourth Proportional to 250,081.50, 345,112.74 and 136,904.52

Step by Step Solution

1. Step 1: Write the proportion equation
   250,081.50 : 345,112.74 = 136,904.52 : x
2. Step 2: Convert to fraction form
   250,081.50/345,112.74 = 136,904.52/x
3. Step 3: Cross multiply
   250,081.50x = 345,112.74 × 136,904.52
4. Step 4: Simplify right side
   250,081.50x = 47,247,494,015.58
5. Step 5: Solve for x
   x = 47,247,494,015.58/250,081.50
6. Step 6: Final answer
   x = 188,928.39