Finding the Fourth Proportional to 10,745.34, 16,142.70 and 7,632.90

Step by Step Solution

1. Step 1: Write the proportion equation
   10,745.34 : 16,142.70 = 7,632.90 : x
2. Step 2: Convert to fraction form
   10,745.34/16,142.70 = 7,632.90/x
3. Step 3: Cross multiply
   10,745.34x = 16,142.70 × 7,632.90
4. Step 4: Simplify right side
   10,745.34x = 123,215,614.83
5. Step 5: Solve for x
   x = 123,215,614.83/10,745.34
6. Step 6: Final answer
   x = 11,466.89