Finding the Fourth Proportional to 57,023.71, 78,690.42 and 33,148.51

Step by Step Solution

1. Step 1: Write the proportion equation
   57,023.71 : 78,690.42 = 33,148.51 : x
2. Step 2: Convert to fraction form
   57,023.71/78,690.42 = 33,148.51/x
3. Step 3: Cross multiply
   57,023.71x = 78,690.42 × 33,148.51
4. Step 4: Simplify right side
   57,023.71x = 2,608,469,977.55
5. Step 5: Solve for x
   x = 2,608,469,977.55/57,023.71
6. Step 6: Final answer
   x = 45,743.61