Finding the Fourth Proportional to 21,391.29, 32,086.83 and 5,808.90

Step by Step Solution

1. Step 1: Write the proportion equation
   21,391.29 : 32,086.83 = 5,808.90 : x
2. Step 2: Convert to fraction form
   21,391.29/32,086.83 = 5,808.90/x
3. Step 3: Cross multiply
   21,391.29x = 32,086.83 × 5,808.90
4. Step 4: Simplify right side
   21,391.29x = 186,389,186.79
5. Step 5: Solve for x
   x = 186,389,186.79/21,391.29
6. Step 6: Final answer
   x = 8,713.32