Finding the Fourth Proportional to 10,708.65, 16,068.47 and 5,166.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,708.65 : 16,068.47 = 5,166.72 : x
2. Step 2: Convert to fraction form
   10,708.65/16,068.47 = 5,166.72/x
3. Step 3: Cross multiply
   10,708.65x = 16,068.47 × 5,166.72
4. Step 4: Simplify right side
   10,708.65x = 83,021,259.48
5. Step 5: Solve for x
   x = 83,021,259.48/10,708.65
6. Step 6: Final answer
   x = 7,752.73