Finding the Fourth Proportional to 22,111.84, 33,163.20 and 7,317.28

Step by Step Solution

1. Step 1: Write the proportion equation
   22,111.84 : 33,163.20 = 7,317.28 : x
2. Step 2: Convert to fraction form
   22,111.84/33,163.20 = 7,317.28/x
3. Step 3: Cross multiply
   22,111.84x = 33,163.20 × 7,317.28
4. Step 4: Simplify right side
   22,111.84x = 242,664,420.10
5. Step 5: Solve for x
   x = 242,664,420.10/22,111.84
6. Step 6: Final answer
   x = 10,974.41