Finding the Fourth Proportional to 22,086.04, 30,478.71 and 12,654.64

Step by Step Solution

1. Step 1: Write the proportion equation
   22,086.04 : 30,478.71 = 12,654.64 : x
2. Step 2: Convert to fraction form
   22,086.04/30,478.71 = 12,654.64/x
3. Step 3: Cross multiply
   22,086.04x = 30,478.71 × 12,654.64
4. Step 4: Simplify right side
   22,086.04x = 385,697,102.71
5. Step 5: Solve for x
   x = 385,697,102.71/22,086.04
6. Step 6: Final answer
   x = 17,463.39