Finding the Fourth Proportional to 8,784.43, 12,122.84 and 5,007.51

Step by Step Solution

1. Step 1: Write the proportion equation
   8,784.43 : 12,122.84 = 5,007.51 : x
2. Step 2: Convert to fraction form
   8,784.43/12,122.84 = 5,007.51/x
3. Step 3: Cross multiply
   8,784.43x = 12,122.84 × 5,007.51
4. Step 4: Simplify right side
   8,784.43x = 60,705,255.05
5. Step 5: Solve for x
   x = 60,705,255.05/8,784.43
6. Step 6: Final answer
   x = 6,910.55