Finding the Fourth Proportional to 8,696.72, 12,001.56 and 4,919.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,696.72 : 12,001.56 = 4,919.88 : x
2. Step 2: Convert to fraction form
   8,696.72/12,001.56 = 4,919.88/x
3. Step 3: Cross multiply
   8,696.72x = 12,001.56 × 4,919.88
4. Step 4: Simplify right side
   8,696.72x = 59,046,235.01
5. Step 5: Solve for x
   x = 59,046,235.01/8,696.72
6. Step 6: Final answer
   x = 6,789.48