Finding the Fourth Proportional to 250,120.58, 345,199.25 and 142,665.94

Step by Step Solution

1. Step 1: Write the proportion equation
   250,120.58 : 345,199.25 = 142,665.94 : x
2. Step 2: Convert to fraction form
   250,120.58/345,199.25 = 142,665.94/x
3. Step 3: Cross multiply
   250,120.58x = 345,199.25 × 142,665.94
4. Step 4: Simplify right side
   250,120.58x = 49,248,175,488.55
5. Step 5: Solve for x
   x = 49,248,175,488.55/250,120.58
6. Step 6: Final answer
   x = 196,897.73