Finding the Fourth Proportional to 250,300.24, 345,415.56 and 137,123.04

Step by Step Solution

1. Step 1: Write the proportion equation
   250,300.24 : 345,415.56 = 137,123.04 : x
2. Step 2: Convert to fraction form
   250,300.24/345,415.56 = 137,123.04/x
3. Step 3: Cross multiply
   250,300.24x = 345,415.56 × 137,123.04
4. Step 4: Simplify right side
   250,300.24x = 47,364,431,650.50
5. Step 5: Solve for x
   x = 47,364,431,650.50/250,300.24
6. Step 6: Final answer
   x = 189,230.47