Finding the Fourth Proportional to 57,026.92, 78,697 and 31,185.48

Step by Step Solution

1. Step 1: Write the proportion equation
   57,026.92 : 78,697 = 31,185.48 : x
2. Step 2: Convert to fraction form
   57,026.92/78,697 = 31,185.48/x
3. Step 3: Cross multiply
   57,026.92x = 78,697 × 31,185.48
4. Step 4: Simplify right side
   57,026.92x = 2,454,203,719.56
5. Step 5: Solve for x
   x = 2,454,203,719.56/57,026.92
6. Step 6: Final answer
   x = 43,035.88