Finding the Fourth Proportional to 22,086.14, 30,479.73 and 12,656.57

Step by Step Solution

1. Step 1: Write the proportion equation
   22,086.14 : 30,479.73 = 12,656.57 : x
2. Step 2: Convert to fraction form
   22,086.14/30,479.73 = 12,656.57/x
3. Step 3: Cross multiply
   22,086.14x = 30,479.73 × 12,656.57
4. Step 4: Simplify right side
   22,086.14x = 385,768,836.33
5. Step 5: Solve for x
   x = 385,768,836.33/22,086.14
6. Step 6: Final answer
   x = 17,466.56