Finding the Fourth Proportional to 21,007.37, 28,981.86 and 14,632.27

Step by Step Solution

1. Step 1: Write the proportion equation
   21,007.37 : 28,981.86 = 14,632.27 : x
2. Step 2: Convert to fraction form
   21,007.37/28,981.86 = 14,632.27/x
3. Step 3: Cross multiply
   21,007.37x = 28,981.86 × 14,632.27
4. Step 4: Simplify right side
   21,007.37x = 424,070,400.62
5. Step 5: Solve for x
   x = 424,070,400.62/21,007.37
6. Step 6: Final answer
   x = 20,186.74