Finding the Fourth Proportional to 14,513.56, 21,767.58 and 5,153.20

Step by Step Solution

1. Step 1: Write the proportion equation
   14,513.56 : 21,767.58 = 5,153.20 : x
2. Step 2: Convert to fraction form
   14,513.56/21,767.58 = 5,153.20/x
3. Step 3: Cross multiply
   14,513.56x = 21,767.58 × 5,153.20
4. Step 4: Simplify right side
   14,513.56x = 112,172,638.84
5. Step 5: Solve for x
   x = 112,172,638.84/14,513.56
6. Step 6: Final answer
   x = 7,728.82