Finding the Fourth Proportional to 58,544.78, 80,791.56 and 31,687.74

Step by Step Solution

1. Step 1: Write the proportion equation
   58,544.78 : 80,791.56 = 31,687.74 : x
2. Step 2: Convert to fraction form
   58,544.78/80,791.56 = 31,687.74/x
3. Step 3: Cross multiply
   58,544.78x = 80,791.56 × 31,687.74
4. Step 4: Simplify right side
   58,544.78x = 2,560,101,947.47
5. Step 5: Solve for x
   x = 2,560,101,947.47/58,544.78
6. Step 6: Final answer
   x = 43,728.96