Finding the Fourth Proportional to 22,178.22, 30,613.05 and 12,753.06

Step by Step Solution

1. Step 1: Write the proportion equation
   22,178.22 : 30,613.05 = 12,753.06 : x
2. Step 2: Convert to fraction form
   22,178.22/30,613.05 = 12,753.06/x
3. Step 3: Cross multiply
   22,178.22x = 30,613.05 × 12,753.06
4. Step 4: Simplify right side
   22,178.22x = 390,410,063.43
5. Step 5: Solve for x
   x = 390,410,063.43/22,178.22
6. Step 6: Final answer
   x = 17,603.31