Finding the Fourth Proportional to 58,797.42, 81,139.67 and 31,940.79

Step by Step Solution

1. Step 1: Write the proportion equation
   58,797.42 : 81,139.67 = 31,940.79 : x
2. Step 2: Convert to fraction form
   58,797.42/81,139.67 = 31,940.79/x
3. Step 3: Cross multiply
   58,797.42x = 81,139.67 × 31,940.79
4. Step 4: Simplify right side
   58,797.42x = 2,591,665,160.14
5. Step 5: Solve for x
   x = 2,591,665,160.14/58,797.42
6. Step 6: Final answer
   x = 44,077.87