Finding the Fourth Proportional to 14,749.72, 22,123.86 and 5,515

Step by Step Solution

1. Step 1: Write the proportion equation
   14,749.72 : 22,123.86 = 5,515 : x
2. Step 2: Convert to fraction form
   14,749.72/22,123.86 = 5,515/x
3. Step 3: Cross multiply
   14,749.72x = 22,123.86 × 5,515
4. Step 4: Simplify right side
   14,749.72x = 122,013,087.90
5. Step 5: Solve for x
   x = 122,013,087.90/14,749.72
6. Step 6: Final answer
   x = 8,272.23