Finding the Fourth Proportional to 10,158.80, 14,020.33 and 5,910.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,158.80 : 14,020.33 = 5,910.05 : x
2. Step 2: Convert to fraction form
   10,158.80/14,020.33 = 5,910.05/x
3. Step 3: Cross multiply
   10,158.80x = 14,020.33 × 5,910.05
4. Step 4: Simplify right side
   10,158.80x = 82,860,781.21
5. Step 5: Solve for x
   x = 82,860,781.21/10,158.80
6. Step 6: Final answer
   x = 8,156.55