Finding the Fourth Proportional to 3,632.16, 5,010.96 and 2,139.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,632.16 : 5,010.96 = 2,139.12 : x
2. Step 2: Convert to fraction form
   3,632.16/5,010.96 = 2,139.12/x
3. Step 3: Cross multiply
   3,632.16x = 5,010.96 × 2,139.12
4. Step 4: Simplify right side
   3,632.16x = 10,719,044.76
5. Step 5: Solve for x
   x = 10,719,044.76/3,632.16
6. Step 6: Final answer
   x = 2,951.15