Finding the Fourth Proportional to 10,608.91, 15,889.13 and 5,066.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,608.91 : 15,889.13 = 5,066.15 : x
2. Step 2: Convert to fraction form
   10,608.91/15,889.13 = 5,066.15/x
3. Step 3: Cross multiply
   10,608.91x = 15,889.13 × 5,066.15
4. Step 4: Simplify right side
   10,608.91x = 80,496,768.34
5. Step 5: Solve for x
   x = 80,496,768.34/10,608.91
6. Step 6: Final answer
   x = 7,587.66