Finding the Fourth Proportional to 12,949.50, 19,424.43 and 4,630.05

Step by Step Solution

1. Step 1: Write the proportion equation
   12,949.50 : 19,424.43 = 4,630.05 : x
2. Step 2: Convert to fraction form
   12,949.50/19,424.43 = 4,630.05/x
3. Step 3: Cross multiply
   12,949.50x = 19,424.43 × 4,630.05
4. Step 4: Simplify right side
   12,949.50x = 89,936,082.12
5. Step 5: Solve for x
   x = 89,936,082.12/12,949.50
6. Step 6: Final answer
   x = 6,945.14