Finding the Fourth Proportional to 57,105.61, 78,806.72 and 33,231.77

Step by Step Solution

1. Step 1: Write the proportion equation
   57,105.61 : 78,806.72 = 33,231.77 : x
2. Step 2: Convert to fraction form
   57,105.61/78,806.72 = 33,231.77/x
3. Step 3: Cross multiply
   57,105.61x = 78,806.72 × 33,231.77
4. Step 4: Simplify right side
   57,105.61x = 2,618,886,778.07
5. Step 5: Solve for x
   x = 2,618,886,778.07/57,105.61
6. Step 6: Final answer
   x = 45,860.41