Finding the Fourth Proportional to 8,768.72, 12,100.65 and 4,940.36

Step by Step Solution

1. Step 1: Write the proportion equation
   8,768.72 : 12,100.65 = 4,940.36 : x
2. Step 2: Convert to fraction form
   8,768.72/12,100.65 = 4,940.36/x
3. Step 3: Cross multiply
   8,768.72x = 12,100.65 × 4,940.36
4. Step 4: Simplify right side
   8,768.72x = 59,781,593.32
5. Step 5: Solve for x
   x = 59,781,593.32/8,768.72
6. Step 6: Final answer
   x = 6,817.60