Finding the Fourth Proportional to 13,238.16, 19,858.32 and 5,447.04

Step by Step Solution

1. Step 1: Write the proportion equation
   13,238.16 : 19,858.32 = 5,447.04 : x
2. Step 2: Convert to fraction form
   13,238.16/19,858.32 = 5,447.04/x
3. Step 3: Cross multiply
   13,238.16x = 19,858.32 × 5,447.04
4. Step 4: Simplify right side
   13,238.16x = 108,169,063.37
5. Step 5: Solve for x
   x = 108,169,063.37/13,238.16
6. Step 6: Final answer
   x = 8,171.00