Finding the Fourth Proportional to 250,522.53, 345,742.83 and 137,367.15

Step by Step Solution

1. Step 1: Write the proportion equation
   250,522.53 : 345,742.83 = 137,367.15 : x
2. Step 2: Convert to fraction form
   250,522.53/345,742.83 = 137,367.15/x
3. Step 3: Cross multiply
   250,522.53x = 345,742.83 × 137,367.15
4. Step 4: Simplify right side
   250,522.53x = 47,493,707,190.03
5. Step 5: Solve for x
   x = 47,493,707,190.03/250,522.53
6. Step 6: Final answer
   x = 189,578.59