Finding the Fourth Proportional to 239,196.72, 330,089.88 and 131,764.32

Step by Step Solution

1. Step 1: Write the proportion equation
   239,196.72 : 330,089.88 = 131,764.32 : x
2. Step 2: Convert to fraction form
   239,196.72/330,089.88 = 131,764.32/x
3. Step 3: Cross multiply
   239,196.72x = 330,089.88 × 131,764.32
4. Step 4: Simplify right side
   239,196.72x = 43,494,068,577.08
5. Step 5: Solve for x
   x = 43,494,068,577.08/239,196.72
6. Step 6: Final answer
   x = 181,833.88