Finding the Fourth Proportional to 13,007.49, 19,517.16 and 5,513.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,007.49 : 19,517.16 = 5,513.10 : x
2. Step 2: Convert to fraction form
   13,007.49/19,517.16 = 5,513.10/x
3. Step 3: Cross multiply
   13,007.49x = 19,517.16 × 5,513.10
4. Step 4: Simplify right side
   13,007.49x = 107,600,054.80
5. Step 5: Solve for x
   x = 107,600,054.80/13,007.49
6. Step 6: Final answer
   x = 8,272.16