Finding the Fourth Proportional to 20,705.42, 31,050.96 and 5,910.37

Step by Step Solution

1. Step 1: Write the proportion equation
   20,705.42 : 31,050.96 = 5,910.37 : x
2. Step 2: Convert to fraction form
   20,705.42/31,050.96 = 5,910.37/x
3. Step 3: Cross multiply
   20,705.42x = 31,050.96 × 5,910.37
4. Step 4: Simplify right side
   20,705.42x = 183,522,570.98
5. Step 5: Solve for x
   x = 183,522,570.98/20,705.42
6. Step 6: Final answer
   x = 8,863.50