Finding the Fourth Proportional to 57,078.24, 78,748.76 and 33,185.40

Step by Step Solution

1. Step 1: Write the proportion equation
   57,078.24 : 78,748.76 = 33,185.40 : x
2. Step 2: Convert to fraction form
   57,078.24/78,748.76 = 33,185.40/x
3. Step 3: Cross multiply
   57,078.24x = 78,748.76 × 33,185.40
4. Step 4: Simplify right side
   57,078.24x = 2,613,309,100.10
5. Step 5: Solve for x
   x = 2,613,309,100.10/57,078.24
6. Step 6: Final answer
   x = 45,784.68