Finding the Fourth Proportional to 22,178.77, 30,607.61 and 12,107.89

Step by Step Solution

1. Step 1: Write the proportion equation
   22,178.77 : 30,607.61 = 12,107.89 : x
2. Step 2: Convert to fraction form
   22,178.77/30,607.61 = 12,107.89/x
3. Step 3: Cross multiply
   22,178.77x = 30,607.61 × 12,107.89
4. Step 4: Simplify right side
   22,178.77x = 370,593,575.04
5. Step 5: Solve for x
   x = 370,593,575.04/22,178.77
6. Step 6: Final answer
   x = 16,709.38