Finding the Fourth Proportional to 225,139.05, 337,787.69 and 140,803.47

Step by Step Solution

1. Step 1: Write the proportion equation
   225,139.05 : 337,787.69 = 140,803.47 : x
2. Step 2: Convert to fraction form
   225,139.05/337,787.69 = 140,803.47/x
3. Step 3: Cross multiply
   225,139.05x = 337,787.69 × 140,803.47
4. Step 4: Simplify right side
   225,139.05x = 47,561,678,171.27
5. Step 5: Solve for x
   x = 47,561,678,171.27/225,139.05
6. Step 6: Final answer
   x = 211,254.68