Finding the Fourth Proportional to 11,749.39, 16,209.71 and 7,500.61

Step by Step Solution

1. Step 1: Write the proportion equation
   11,749.39 : 16,209.71 = 7,500.61 : x
2. Step 2: Convert to fraction form
   11,749.39/16,209.71 = 7,500.61/x
3. Step 3: Cross multiply
   11,749.39x = 16,209.71 × 7,500.61
4. Step 4: Simplify right side
   11,749.39x = 121,582,712.92
5. Step 5: Solve for x
   x = 121,582,712.92/11,749.39
6. Step 6: Final answer
   x = 10,348.00