Finding the Fourth Proportional to 10,052.72, 13,872.70 and 5,576.43

Step by Step Solution

1. Step 1: Write the proportion equation
   10,052.72 : 13,872.70 = 5,576.43 : x
2. Step 2: Convert to fraction form
   10,052.72/13,872.70 = 5,576.43/x
3. Step 3: Cross multiply
   10,052.72x = 13,872.70 × 5,576.43
4. Step 4: Simplify right side
   10,052.72x = 77,360,071.10
5. Step 5: Solve for x
   x = 77,360,071.10/10,052.72
6. Step 6: Final answer
   x = 7,695.44