Finding the Fourth Proportional to 22,214.88, 30,659.04 and 12,784.32

Step by Step Solution

1. Step 1: Write the proportion equation
   22,214.88 : 30,659.04 = 12,784.32 : x
2. Step 2: Convert to fraction form
   22,214.88/30,659.04 = 12,784.32/x
3. Step 3: Cross multiply
   22,214.88x = 30,659.04 × 12,784.32
4. Step 4: Simplify right side
   22,214.88x = 391,954,978.25
5. Step 5: Solve for x
   x = 391,954,978.25/22,214.88
6. Step 6: Final answer
   x = 17,643.80