Finding the Fourth Proportional to 22,123.21, 30,527.73 and 13,168.97

Step by Step Solution

1. Step 1: Write the proportion equation
   22,123.21 : 30,527.73 = 13,168.97 : x
2. Step 2: Convert to fraction form
   22,123.21/30,527.73 = 13,168.97/x
3. Step 3: Cross multiply
   22,123.21x = 30,527.73 × 13,168.97
4. Step 4: Simplify right side
   22,123.21x = 402,018,607.90
5. Step 5: Solve for x
   x = 402,018,607.90/22,123.21
6. Step 6: Final answer
   x = 18,171.80