Finding the Fourth Proportional to 14,496.89, 21,744.65 and 5,136.76

Step by Step Solution

1. Step 1: Write the proportion equation
   14,496.89 : 21,744.65 = 5,136.76 : x
2. Step 2: Convert to fraction form
   14,496.89/21,744.65 = 5,136.76/x
3. Step 3: Cross multiply
   14,496.89x = 21,744.65 × 5,136.76
4. Step 4: Simplify right side
   14,496.89x = 111,697,006.81
5. Step 5: Solve for x
   x = 111,697,006.81/14,496.89
6. Step 6: Final answer
   x = 7,704.89