Finding the Fourth Proportional to 8,748.72, 12,072.35 and 4,919.95

Step by Step Solution

1. Step 1: Write the proportion equation
   8,748.72 : 12,072.35 = 4,919.95 : x
2. Step 2: Convert to fraction form
   8,748.72/12,072.35 = 4,919.95/x
3. Step 3: Cross multiply
   8,748.72x = 12,072.35 × 4,919.95
4. Step 4: Simplify right side
   8,748.72x = 59,395,358.38
5. Step 5: Solve for x
   x = 59,395,358.38/8,748.72
6. Step 6: Final answer
   x = 6,789.03