Finding the Fourth Proportional to 250,353, 375,588.56 and 81,872.66

Step by Step Solution

1. Step 1: Write the proportion equation
   250,353 : 375,588.56 = 81,872.66 : x
2. Step 2: Convert to fraction form
   250,353/375,588.56 = 81,872.66/x
3. Step 3: Cross multiply
   250,353x = 375,588.56 × 81,872.66
4. Step 4: Simplify right side
   250,353x = 30,750,435,616.42
5. Step 5: Solve for x
   x = 30,750,435,616.42/250,353
6. Step 6: Final answer
   x = 122,828.31