Finding the Fourth Proportional to 13,196.16, 19,778.88 and 13,050.24

Step by Step Solution

1. Step 1: Write the proportion equation
   13,196.16 : 19,778.88 = 13,050.24 : x
2. Step 2: Convert to fraction form
   13,196.16/19,778.88 = 13,050.24/x
3. Step 3: Cross multiply
   13,196.16x = 19,778.88 × 13,050.24
4. Step 4: Simplify right side
   13,196.16x = 258,119,130.93
5. Step 5: Solve for x
   x = 258,119,130.93/13,196.16
6. Step 6: Final answer
   x = 19,560.17