Finding the Fourth Proportional to 31,100.70, 46,650.78 and 18,624.27

Step by Step Solution

1. Step 1: Write the proportion equation
   31,100.70 : 46,650.78 = 18,624.27 : x
2. Step 2: Convert to fraction form
   31,100.70/46,650.78 = 18,624.27/x
3. Step 3: Cross multiply
   31,100.70x = 46,650.78 × 18,624.27
4. Step 4: Simplify right side
   31,100.70x = 868,836,722.43
5. Step 5: Solve for x
   x = 868,836,722.43/31,100.70
6. Step 6: Final answer
   x = 27,936.24