Finding the Fourth Proportional to 56,818.52, 78,410.06 and 31,325.79

Step by Step Solution

1. Step 1: Write the proportion equation
   56,818.52 : 78,410.06 = 31,325.79 : x
2. Step 2: Convert to fraction form
   56,818.52/78,410.06 = 31,325.79/x
3. Step 3: Cross multiply
   56,818.52x = 78,410.06 × 31,325.79
4. Step 4: Simplify right side
   56,818.52x = 2,456,257,073.45
5. Step 5: Solve for x
   x = 2,456,257,073.45/56,818.52
6. Step 6: Final answer
   x = 43,229.87