Finding the Fourth Proportional to 22,142.56, 30,557.28 and 12,582.22

Step by Step Solution

1. Step 1: Write the proportion equation
   22,142.56 : 30,557.28 = 12,582.22 : x
2. Step 2: Convert to fraction form
   22,142.56/30,557.28 = 12,582.22/x
3. Step 3: Cross multiply
   22,142.56x = 30,557.28 × 12,582.22
4. Step 4: Simplify right side
   22,142.56x = 384,478,419.56
5. Step 5: Solve for x
   x = 384,478,419.56/22,142.56
6. Step 6: Final answer
   x = 17,363.77