Finding the Fourth Proportional to 22,164.16, 30,585.76 and 12,603.20

Step by Step Solution

1. Step 1: Write the proportion equation
   22,164.16 : 30,585.76 = 12,603.20 : x
2. Step 2: Convert to fraction form
   22,164.16/30,585.76 = 12,603.20/x
3. Step 3: Cross multiply
   22,164.16x = 30,585.76 × 12,603.20
4. Step 4: Simplify right side
   22,164.16x = 385,478,450.43
5. Step 5: Solve for x
   x = 385,478,450.43/22,164.16
6. Step 6: Final answer
   x = 17,391.97