Finding the Fourth Proportional to 22,087.12, 30,477 and 12,654.16

Step by Step Solution

1. Step 1: Write the proportion equation
   22,087.12 : 30,477 = 12,654.16 : x
2. Step 2: Convert to fraction form
   22,087.12/30,477 = 12,654.16/x
3. Step 3: Cross multiply
   22,087.12x = 30,477 × 12,654.16
4. Step 4: Simplify right side
   22,087.12x = 385,660,834.32
5. Step 5: Solve for x
   x = 385,660,834.32/22,087.12
6. Step 6: Final answer
   x = 17,460.89