Finding the Fourth Proportional to 72,587.31, 108,893.79 and 33,148.41

Step by Step Solution

1. Step 1: Write the proportion equation
   72,587.31 : 108,893.79 = 33,148.41 : x
2. Step 2: Convert to fraction form
   72,587.31/108,893.79 = 33,148.41/x
3. Step 3: Cross multiply
   72,587.31x = 108,893.79 × 33,148.41
4. Step 4: Simplify right side
   72,587.31x = 3,609,655,997.37
5. Step 5: Solve for x
   x = 3,609,655,997.37/72,587.31
6. Step 6: Final answer
   x = 49,728.47