Finding the Fourth Proportional to 250,105.53, 345,178.50 and 142,650.93

Step by Step Solution

1. Step 1: Write the proportion equation
   250,105.53 : 345,178.50 = 142,650.93 : x
2. Step 2: Convert to fraction form
   250,105.53/345,178.50 = 142,650.93/x
3. Step 3: Cross multiply
   250,105.53x = 345,178.50 × 142,650.93
4. Step 4: Simplify right side
   250,105.53x = 49,240,034,041.01
5. Step 5: Solve for x
   x = 49,240,034,041.01/250,105.53
6. Step 6: Final answer
   x = 196,877.03