Finding the Fourth Proportional to 40,604.81, 60,879.50 and 21,632.28

Step by Step Solution

1. Step 1: Write the proportion equation
   40,604.81 : 60,879.50 = 21,632.28 : x
2. Step 2: Convert to fraction form
   40,604.81/60,879.50 = 21,632.28/x
3. Step 3: Cross multiply
   40,604.81x = 60,879.50 × 21,632.28
4. Step 4: Simplify right side
   40,604.81x = 1,316,962,282.10
5. Step 5: Solve for x
   x = 1,316,962,282.10/40,604.81
6. Step 6: Final answer
   x = 32,433.65