Finding the Fourth Proportional to 57,115.68, 78,815.82 and 33,238.56

Step by Step Solution

1. Step 1: Write the proportion equation
   57,115.68 : 78,815.82 = 33,238.56 : x
2. Step 2: Convert to fraction form
   57,115.68/78,815.82 = 33,238.56/x
3. Step 3: Cross multiply
   57,115.68x = 78,815.82 × 33,238.56
4. Step 4: Simplify right side
   57,115.68x = 2,619,724,362.02
5. Step 5: Solve for x
   x = 2,619,724,362.02/57,115.68
6. Step 6: Final answer
   x = 45,866.99