Finding the Fourth Proportional to 11,406.80, 17,074.35 and 7,251.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,406.80 : 17,074.35 = 7,251.50 : x
2. Step 2: Convert to fraction form
   11,406.80/17,074.35 = 7,251.50/x
3. Step 3: Cross multiply
   11,406.80x = 17,074.35 × 7,251.50
4. Step 4: Simplify right side
   11,406.80x = 123,814,691.71
5. Step 5: Solve for x
   x = 123,814,691.71/11,406.80
6. Step 6: Final answer
   x = 10,854.46