Finding the Fourth Proportional to 21,185.86, 31,784.19 and 14,958.01

Step by Step Solution

1. Step 1: Write the proportion equation
   21,185.86 : 31,784.19 = 14,958.01 : x
2. Step 2: Convert to fraction form
   21,185.86/31,784.19 = 14,958.01/x
3. Step 3: Cross multiply
   21,185.86x = 31,784.19 × 14,958.01
4. Step 4: Simplify right side
   21,185.86x = 475,428,231.86
5. Step 5: Solve for x
   x = 475,428,231.86/21,185.86
6. Step 6: Final answer
   x = 22,440.83