Finding the Fourth Proportional to 10,789.08, 16,178.10 and 4,940.67

Step by Step Solution

1. Step 1: Write the proportion equation
   10,789.08 : 16,178.10 = 4,940.67 : x
2. Step 2: Convert to fraction form
   10,789.08/16,178.10 = 4,940.67/x
3. Step 3: Cross multiply
   10,789.08x = 16,178.10 × 4,940.67
4. Step 4: Simplify right side
   10,789.08x = 79,930,695.47
5. Step 5: Solve for x
   x = 79,930,695.47/10,789.08
6. Step 6: Final answer
   x = 7,408.48