Finding the Fourth Proportional to 55,456.28, 76,520.82 and 31,583.40

Step by Step Solution

1. Step 1: Write the proportion equation
   55,456.28 : 76,520.82 = 31,583.40 : x
2. Step 2: Convert to fraction form
   55,456.28/76,520.82 = 31,583.40/x
3. Step 3: Cross multiply
   55,456.28x = 76,520.82 × 31,583.40
4. Step 4: Simplify right side
   55,456.28x = 2,416,787,666.39
5. Step 5: Solve for x
   x = 2,416,787,666.39/55,456.28
6. Step 6: Final answer
   x = 43,580.05