Finding the Fourth Proportional to 13,019.46, 19,530.39 and 4,254.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,019.46 : 19,530.39 = 4,254.42 : x
2. Step 2: Convert to fraction form
   13,019.46/19,530.39 = 4,254.42/x
3. Step 3: Cross multiply
   13,019.46x = 19,530.39 × 4,254.42
4. Step 4: Simplify right side
   13,019.46x = 83,090,481.82
5. Step 5: Solve for x
   x = 83,090,481.82/13,019.46
6. Step 6: Final answer
   x = 6,382.02