Finding the Fourth Proportional to 17,419.19, 26,128.73 and 4,271.42

Step by Step Solution

1. Step 1: Write the proportion equation
   17,419.19 : 26,128.73 = 4,271.42 : x
2. Step 2: Convert to fraction form
   17,419.19/26,128.73 = 4,271.42/x
3. Step 3: Cross multiply
   17,419.19x = 26,128.73 × 4,271.42
4. Step 4: Simplify right side
   17,419.19x = 111,606,855.90
5. Step 5: Solve for x
   x = 111,606,855.90/17,419.19
6. Step 6: Final answer
   x = 6,407.12