Finding the Fourth Proportional to 22,086.23, 30,478.46 and 12,654.19

Step by Step Solution

1. Step 1: Write the proportion equation
   22,086.23 : 30,478.46 = 12,654.19 : x
2. Step 2: Convert to fraction form
   22,086.23/30,478.46 = 12,654.19/x
3. Step 3: Cross multiply
   22,086.23x = 30,478.46 × 12,654.19
4. Step 4: Simplify right side
   22,086.23x = 385,680,084.28
5. Step 5: Solve for x
   x = 385,680,084.28/22,086.23
6. Step 6: Final answer
   x = 17,462.47