Finding the Fourth Proportional to 56,854.50, 78,460.83 and 31,705.62

Step by Step Solution

1. Step 1: Write the proportion equation
   56,854.50 : 78,460.83 = 31,705.62 : x
2. Step 2: Convert to fraction form
   56,854.50/78,460.83 = 31,705.62/x
3. Step 3: Cross multiply
   56,854.50x = 78,460.83 × 31,705.62
4. Step 4: Simplify right side
   56,854.50x = 2,487,649,260.86
5. Step 5: Solve for x
   x = 2,487,649,260.86/56,854.50
6. Step 6: Final answer
   x = 43,754.66