Finding the Fourth Proportional to 22,118.08, 30,523.82 and 12,688.46

Step by Step Solution

1. Step 1: Write the proportion equation
   22,118.08 : 30,523.82 = 12,688.46 : x
2. Step 2: Convert to fraction form
   22,118.08/30,523.82 = 12,688.46/x
3. Step 3: Cross multiply
   22,118.08x = 30,523.82 × 12,688.46
4. Step 4: Simplify right side
   22,118.08x = 387,300,269.12
5. Step 5: Solve for x
   x = 387,300,269.12/22,118.08
6. Step 6: Final answer
   x = 17,510.58