Finding the Fourth Proportional to 21,632.39, 29,850.81 and 12,071.56

Step by Step Solution

1. Step 1: Write the proportion equation
   21,632.39 : 29,850.81 = 12,071.56 : x
2. Step 2: Convert to fraction form
   21,632.39/29,850.81 = 12,071.56/x
3. Step 3: Cross multiply
   21,632.39x = 29,850.81 × 12,071.56
4. Step 4: Simplify right side
   21,632.39x = 360,345,724.07
5. Step 5: Solve for x
   x = 360,345,724.07/21,632.39
6. Step 6: Final answer
   x = 16,657.69