Finding the Fourth Proportional to 13,018.48, 19,513.90 and 4,251.04

Step by Step Solution

1. Step 1: Write the proportion equation
   13,018.48 : 19,513.90 = 4,251.04 : x
2. Step 2: Convert to fraction form
   13,018.48/19,513.90 = 4,251.04/x
3. Step 3: Cross multiply
   13,018.48x = 19,513.90 × 4,251.04
4. Step 4: Simplify right side
   13,018.48x = 82,954,369.46
5. Step 5: Solve for x
   x = 82,954,369.46/13,018.48
6. Step 6: Final answer
   x = 6,372.05