Finding the Fourth Proportional to 13,019.94, 19,518.98 and 4,250.07

Step by Step Solution

1. Step 1: Write the proportion equation
   13,019.94 : 19,518.98 = 4,250.07 : x
2. Step 2: Convert to fraction form
   13,019.94/19,518.98 = 4,250.07/x
3. Step 3: Cross multiply
   13,019.94x = 19,518.98 × 4,250.07
4. Step 4: Simplify right side
   13,019.94x = 82,957,010.08
5. Step 5: Solve for x
   x = 82,957,010.08/13,019.94
6. Step 6: Final answer
   x = 6,371.54