Finding the Fourth Proportional to 20,638.64, 30,963.17 and 5,847.69

Step by Step Solution

1. Step 1: Write the proportion equation
   20,638.64 : 30,963.17 = 5,847.69 : x
2. Step 2: Convert to fraction form
   20,638.64/30,963.17 = 5,847.69/x
3. Step 3: Cross multiply
   20,638.64x = 30,963.17 × 5,847.69
4. Step 4: Simplify right side
   20,638.64x = 181,063,019.58
5. Step 5: Solve for x
   x = 181,063,019.58/20,638.64
6. Step 6: Final answer
   x = 8,773.01