Finding the Fourth Proportional to 250,113.01, 345,123.78 and 142,676.62

Step by Step Solution

1. Step 1: Write the proportion equation
   250,113.01 : 345,123.78 = 142,676.62 : x
2. Step 2: Convert to fraction form
   250,113.01/345,123.78 = 142,676.62/x
3. Step 3: Cross multiply
   250,113.01x = 345,123.78 × 142,676.62
4. Step 4: Simplify right side
   250,113.01x = 49,241,094,412.02
5. Step 5: Solve for x
   x = 49,241,094,412.02/250,113.01
6. Step 6: Final answer
   x = 196,875.38