Finding the Fourth Proportional to 17,426.54, 26,139.51 and 5,739.86

Step by Step Solution

1. Step 1: Write the proportion equation
   17,426.54 : 26,139.51 = 5,739.86 : x
2. Step 2: Convert to fraction form
   17,426.54/26,139.51 = 5,739.86/x
3. Step 3: Cross multiply
   17,426.54x = 26,139.51 × 5,739.86
4. Step 4: Simplify right side
   17,426.54x = 150,037,193.22
5. Step 5: Solve for x
   x = 150,037,193.22/17,426.54
6. Step 6: Final answer
   x = 8,609.69