Finding the Fourth Proportional to 17,919.12, 26,844.24 and 13,919.52

Step by Step Solution

1. Step 1: Write the proportion equation
   17,919.12 : 26,844.24 = 13,919.52 : x
2. Step 2: Convert to fraction form
   17,919.12/26,844.24 = 13,919.52/x
3. Step 3: Cross multiply
   17,919.12x = 26,844.24 × 13,919.52
4. Step 4: Simplify right side
   17,919.12x = 373,658,935.56
5. Step 5: Solve for x
   x = 373,658,935.56/17,919.12
6. Step 6: Final answer
   x = 20,852.53