Finding the Fourth Proportional to 8,783.98, 12,121.76 and 5,007.36

Step by Step Solution

1. Step 1: Write the proportion equation
   8,783.98 : 12,121.76 = 5,007.36 : x
2. Step 2: Convert to fraction form
   8,783.98/12,121.76 = 5,007.36/x
3. Step 3: Cross multiply
   8,783.98x = 12,121.76 × 5,007.36
4. Step 4: Simplify right side
   8,783.98x = 60,698,016.15
5. Step 5: Solve for x
   x = 60,698,016.15/8,783.98
6. Step 6: Final answer
   x = 6,910.08