Finding the Fourth Proportional to 14,401.72, 21,605.46 and 5,637.88

Step by Step Solution

1. Step 1: Write the proportion equation
   14,401.72 : 21,605.46 = 5,637.88 : x
2. Step 2: Convert to fraction form
   14,401.72/21,605.46 = 5,637.88/x
3. Step 3: Cross multiply
   14,401.72x = 21,605.46 × 5,637.88
4. Step 4: Simplify right side
   14,401.72x = 121,808,990.82
5. Step 5: Solve for x
   x = 121,808,990.82/14,401.72
6. Step 6: Final answer
   x = 8,457.95