Finding the Fourth Proportional to 13,004.42, 19,510.20 and 4,238.19

Step by Step Solution

1. Step 1: Write the proportion equation
   13,004.42 : 19,510.20 = 4,238.19 : x
2. Step 2: Convert to fraction form
   13,004.42/19,510.20 = 4,238.19/x
3. Step 3: Cross multiply
   13,004.42x = 19,510.20 × 4,238.19
4. Step 4: Simplify right side
   13,004.42x = 82,687,934.54
5. Step 5: Solve for x
   x = 82,687,934.54/13,004.42
6. Step 6: Final answer
   x = 6,358.45