Finding the Fourth Proportional to 58,813.20, 81,162.72 and 31,955.76

Step by Step Solution

1. Step 1: Write the proportion equation
   58,813.20 : 81,162.72 = 31,955.76 : x
2. Step 2: Convert to fraction form
   58,813.20/81,162.72 = 31,955.76/x
3. Step 3: Cross multiply
   58,813.20x = 81,162.72 × 31,955.76
4. Step 4: Simplify right side
   58,813.20x = 2,593,616,401.27
5. Step 5: Solve for x
   x = 2,593,616,401.27/58,813.20
6. Step 6: Final answer
   x = 44,099.22