Finding the Fourth Proportional to 10,761.63, 16,139.47 and 7,632.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,761.63 : 16,139.47 = 7,632.42 : x
2. Step 2: Convert to fraction form
   10,761.63/16,139.47 = 7,632.42/x
3. Step 3: Cross multiply
   10,761.63x = 16,139.47 × 7,632.42
4. Step 4: Simplify right side
   10,761.63x = 123,183,213.62
5. Step 5: Solve for x
   x = 123,183,213.62/10,761.63
6. Step 6: Final answer
   x = 11,446.52