Finding the Fourth Proportional to 56,582.08, 78,086.70 and 31,431.52

Step by Step Solution

1. Step 1: Write the proportion equation
   56,582.08 : 78,086.70 = 31,431.52 : x
2. Step 2: Convert to fraction form
   56,582.08/78,086.70 = 31,431.52/x
3. Step 3: Cross multiply
   56,582.08x = 78,086.70 × 31,431.52
4. Step 4: Simplify right side
   56,582.08x = 2,454,383,672.78
5. Step 5: Solve for x
   x = 2,454,383,672.78/56,582.08
6. Step 6: Final answer
   x = 43,377.40