Finding the Fourth Proportional to 20,776.79, 31,155.96 and 5,982.25

Step by Step Solution

1. Step 1: Write the proportion equation
   20,776.79 : 31,155.96 = 5,982.25 : x
2. Step 2: Convert to fraction form
   20,776.79/31,155.96 = 5,982.25/x
3. Step 3: Cross multiply
   20,776.79x = 31,155.96 × 5,982.25
4. Step 4: Simplify right side
   20,776.79x = 186,382,741.71
5. Step 5: Solve for x
   x = 186,382,741.71/20,776.79
6. Step 6: Final answer
   x = 8,970.72