Finding the Fourth Proportional to 21,429.74, 32,144.28 and 5,847.32

Step by Step Solution

1. Step 1: Write the proportion equation
   21,429.74 : 32,144.28 = 5,847.32 : x
2. Step 2: Convert to fraction form
   21,429.74/32,144.28 = 5,847.32/x
3. Step 3: Cross multiply
   21,429.74x = 32,144.28 × 5,847.32
4. Step 4: Simplify right side
   21,429.74x = 187,957,891.33
5. Step 5: Solve for x
   x = 187,957,891.33/21,429.74
6. Step 6: Final answer
   x = 8,770.89