Finding the Fourth Proportional to 22,154.51, 30,573 and 12,723.14

Step by Step Solution

1. Step 1: Write the proportion equation
   22,154.51 : 30,573 = 12,723.14 : x
2. Step 2: Convert to fraction form
   22,154.51/30,573 = 12,723.14/x
3. Step 3: Cross multiply
   22,154.51x = 30,573 × 12,723.14
4. Step 4: Simplify right side
   22,154.51x = 388,984,559.22
5. Step 5: Solve for x
   x = 388,984,559.22/22,154.51
6. Step 6: Final answer
   x = 17,557.80