Finding the Fourth Proportional to 309,272.56, 426,788.89 and 181,956.34

Step by Step Solution

1. Step 1: Write the proportion equation
   309,272.56 : 426,788.89 = 181,956.34 : x
2. Step 2: Convert to fraction form
   309,272.56/426,788.89 = 181,956.34/x
3. Step 3: Cross multiply
   309,272.56x = 426,788.89 × 181,956.34
4. Step 4: Simplify right side
   309,272.56x = 77,656,944,377.06
5. Step 5: Solve for x
   x = 77,656,944,377.06/309,272.56
6. Step 6: Final answer
   x = 251,095.49