Finding the Fourth Proportional to 55,697.43, 76,861.38 and 31,498.05

Step by Step Solution

1. Step 1: Write the proportion equation
   55,697.43 : 76,861.38 = 31,498.05 : x
2. Step 2: Convert to fraction form
   55,697.43/76,861.38 = 31,498.05/x
3. Step 3: Cross multiply
   55,697.43x = 76,861.38 × 31,498.05
4. Step 4: Simplify right side
   55,697.43x = 2,420,983,590.31
5. Step 5: Solve for x
   x = 2,420,983,590.31/55,697.43
6. Step 6: Final answer
   x = 43,466.70