Finding the Fourth Proportional to 10,608.54, 15,909.57 and 5,058.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,608.54 : 15,909.57 = 5,058.96 : x
2. Step 2: Convert to fraction form
   10,608.54/15,909.57 = 5,058.96/x
3. Step 3: Cross multiply
   10,608.54x = 15,909.57 × 5,058.96
4. Step 4: Simplify right side
   10,608.54x = 80,485,878.25
5. Step 5: Solve for x
   x = 80,485,878.25/10,608.54
6. Step 6: Final answer
   x = 7,586.89