Finding the Fourth Proportional to 8,824.43, 12,178.72 and 4,845.91

Step by Step Solution

1. Step 1: Write the proportion equation
   8,824.43 : 12,178.72 = 4,845.91 : x
2. Step 2: Convert to fraction form
   8,824.43/12,178.72 = 4,845.91/x
3. Step 3: Cross multiply
   8,824.43x = 12,178.72 × 4,845.91
4. Step 4: Simplify right side
   8,824.43x = 59,016,981.04
5. Step 5: Solve for x
   x = 59,016,981.04/8,824.43
6. Step 6: Final answer
   x = 6,687.91