Finding the Fourth Proportional to 21,431.34, 32,144.55 and 5,850.18

Step by Step Solution

1. Step 1: Write the proportion equation
   21,431.34 : 32,144.55 = 5,850.18 : x
2. Step 2: Convert to fraction form
   21,431.34/32,144.55 = 5,850.18/x
3. Step 3: Cross multiply
   21,431.34x = 32,144.55 × 5,850.18
4. Step 4: Simplify right side
   21,431.34x = 188,051,403.52
5. Step 5: Solve for x
   x = 188,051,403.52/21,431.34
6. Step 6: Final answer
   x = 8,774.60