Finding the Fourth Proportional to 22,488.48, 31,165.36 and 22,171.37

Step by Step Solution

1. Step 1: Write the proportion equation
   22,488.48 : 31,165.36 = 22,171.37 : x
2. Step 2: Convert to fraction form
   22,488.48/31,165.36 = 22,171.37/x
3. Step 3: Cross multiply
   22,488.48x = 31,165.36 × 22,171.37
4. Step 4: Simplify right side
   22,488.48x = 690,978,516.49
5. Step 5: Solve for x
   x = 690,978,516.49/22,488.48
6. Step 6: Final answer
   x = 30,725.89