Finding the Fourth Proportional to 56,934.92, 78,568.71 and 31,443.14

Step by Step Solution

1. Step 1: Write the proportion equation
   56,934.92 : 78,568.71 = 31,443.14 : x
2. Step 2: Convert to fraction form
   56,934.92/78,568.71 = 31,443.14/x
3. Step 3: Cross multiply
   56,934.92x = 78,568.71 × 31,443.14
4. Step 4: Simplify right side
   56,934.92x = 2,470,446,948.15
5. Step 5: Solve for x
   x = 2,470,446,948.15/56,934.92
6. Step 6: Final answer
   x = 43,390.72