Finding the Fourth Proportional to 57,018.83, 78,684.59 and 31,524.54

Step by Step Solution

1. Step 1: Write the proportion equation
   57,018.83 : 78,684.59 = 31,524.54 : x
2. Step 2: Convert to fraction form
   57,018.83/78,684.59 = 31,524.54/x
3. Step 3: Cross multiply
   57,018.83x = 78,684.59 × 31,524.54
4. Step 4: Simplify right side
   57,018.83x = 2,480,495,504.84
5. Step 5: Solve for x
   x = 2,480,495,504.84/57,018.83
6. Step 6: Final answer
   x = 43,503.09