Finding the Fourth Proportional to 8,783.55, 12,119.89 and 5,006.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,783.55 : 12,119.89 = 5,006.72 : x
2. Step 2: Convert to fraction form
   8,783.55/12,119.89 = 5,006.72/x
3. Step 3: Cross multiply
   8,783.55x = 12,119.89 × 5,006.72
4. Step 4: Simplify right side
   8,783.55x = 60,680,870.63
5. Step 5: Solve for x
   x = 60,680,870.63/8,783.55
6. Step 6: Final answer
   x = 6,908.47