Finding the Fourth Proportional to 331,987.72, 458,139.06 and 181,081.48

Step by Step Solution

1. Step 1: Write the proportion equation
   331,987.72 : 458,139.06 = 181,081.48 : x
2. Step 2: Convert to fraction form
   331,987.72/458,139.06 = 181,081.48/x
3. Step 3: Cross multiply
   331,987.72x = 458,139.06 × 181,081.48
4. Step 4: Simplify right side
   331,987.72x = 82,960,499,030.61
5. Step 5: Solve for x
   x = 82,960,499,030.61/331,987.72
6. Step 6: Final answer
   x = 249,890.26