Finding the Fourth Proportional to 12,166.71, 16,792.76 and 7,910.39

Step by Step Solution

1. Step 1: Write the proportion equation
   12,166.71 : 16,792.76 = 7,910.39 : x
2. Step 2: Convert to fraction form
   12,166.71/16,792.76 = 7,910.39/x
3. Step 3: Cross multiply
   12,166.71x = 16,792.76 × 7,910.39
4. Step 4: Simplify right side
   12,166.71x = 132,837,216.59
5. Step 5: Solve for x
   x = 132,837,216.59/12,166.71
6. Step 6: Final answer
   x = 10,918.09