Finding the Fourth Proportional to 13,238.94, 19,854.01 and 5,339.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,238.94 : 19,854.01 = 5,339.42 : x
2. Step 2: Convert to fraction form
   13,238.94/19,854.01 = 5,339.42/x
3. Step 3: Cross multiply
   13,238.94x = 19,854.01 × 5,339.42
4. Step 4: Simplify right side
   13,238.94x = 106,008,898.07
5. Step 5: Solve for x
   x = 106,008,898.07/13,238.94
6. Step 6: Final answer
   x = 8,007.36