Finding the Fourth Proportional to 21,074.50, 31,612.56 and 5,492.26

Step by Step Solution

1. Step 1: Write the proportion equation
   21,074.50 : 31,612.56 = 5,492.26 : x
2. Step 2: Convert to fraction form
   21,074.50/31,612.56 = 5,492.26/x
3. Step 3: Cross multiply
   21,074.50x = 31,612.56 × 5,492.26
4. Step 4: Simplify right side
   21,074.50x = 173,624,398.79
5. Step 5: Solve for x
   x = 173,624,398.79/21,074.50
6. Step 6: Final answer
   x = 8,238.60