Finding the Fourth Proportional to 20,730.70, 31,100.82 and 5,939.74

Step by Step Solution

1. Step 1: Write the proportion equation
   20,730.70 : 31,100.82 = 5,939.74 : x
2. Step 2: Convert to fraction form
   20,730.70/31,100.82 = 5,939.74/x
3. Step 3: Cross multiply
   20,730.70x = 31,100.82 × 5,939.74
4. Step 4: Simplify right side
   20,730.70x = 184,730,784.59
5. Step 5: Solve for x
   x = 184,730,784.59/20,730.70
6. Step 6: Final answer
   x = 8,910.98