Finding the Fourth Proportional to 3,632.45, 5,013.56 and 2,139.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,632.45 : 5,013.56 = 2,139.82 : x
2. Step 2: Convert to fraction form
   3,632.45/5,013.56 = 2,139.82/x
3. Step 3: Cross multiply
   3,632.45x = 5,013.56 × 2,139.82
4. Step 4: Simplify right side
   3,632.45x = 10,728,108.77
5. Step 5: Solve for x
   x = 10,728,108.77/3,632.45
6. Step 6: Final answer
   x = 2,953.41