Finding the Fourth Proportional to 20,634.84, 30,967.29 and 7,488.27

Step by Step Solution

1. Step 1: Write the proportion equation
   20,634.84 : 30,967.29 = 7,488.27 : x
2. Step 2: Convert to fraction form
   20,634.84/30,967.29 = 7,488.27/x
3. Step 3: Cross multiply
   20,634.84x = 30,967.29 × 7,488.27
4. Step 4: Simplify right side
   20,634.84x = 231,891,428.69
5. Step 5: Solve for x
   x = 231,891,428.69/20,634.84
6. Step 6: Final answer
   x = 11,237.86