Finding the Fourth Proportional to 269,878.72, 372,381.54 and 149,016.61

Step by Step Solution

1. Step 1: Write the proportion equation
   269,878.72 : 372,381.54 = 149,016.61 : x
2. Step 2: Convert to fraction form
   269,878.72/372,381.54 = 149,016.61/x
3. Step 3: Cross multiply
   269,878.72x = 372,381.54 × 149,016.61
4. Step 4: Simplify right side
   269,878.72x = 55,491,034,717.38
5. Step 5: Solve for x
   x = 55,491,034,717.38/269,878.72
6. Step 6: Final answer
   x = 205,614.71