Finding the Fourth Proportional to 21,964.89, 30,303.67 and 12,527.99

Step by Step Solution

1. Step 1: Write the proportion equation
   21,964.89 : 30,303.67 = 12,527.99 : x
2. Step 2: Convert to fraction form
   21,964.89/30,303.67 = 12,527.99/x
3. Step 3: Cross multiply
   21,964.89x = 30,303.67 × 12,527.99
4. Step 4: Simplify right side
   21,964.89x = 379,644,074.72
5. Step 5: Solve for x
   x = 379,644,074.72/21,964.89
6. Step 6: Final answer
   x = 17,284.13