Finding the Fourth Proportional to 55,081.18, 76,007.73 and 31,211.59

Step by Step Solution

1. Step 1: Write the proportion equation
   55,081.18 : 76,007.73 = 31,211.59 : x
2. Step 2: Convert to fraction form
   55,081.18/76,007.73 = 31,211.59/x
3. Step 3: Cross multiply
   55,081.18x = 76,007.73 × 31,211.59
4. Step 4: Simplify right side
   55,081.18x = 2,372,322,105.59
5. Step 5: Solve for x
   x = 2,372,322,105.59/55,081.18
6. Step 6: Final answer
   x = 43,069.56