Finding the Fourth Proportional to 17,451.50, 26,182.05 and 5,139.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,451.50 : 26,182.05 = 5,139.50 : x
2. Step 2: Convert to fraction form
   17,451.50/26,182.05 = 5,139.50/x
3. Step 3: Cross multiply
   17,451.50x = 26,182.05 × 5,139.50
4. Step 4: Simplify right side
   17,451.50x = 134,562,645.98
5. Step 5: Solve for x
   x = 134,562,645.98/17,451.50
6. Step 6: Final answer
   x = 7,710.66