Finding the Fourth Proportional to 12,003.75, 18,012.15 and 5,847.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,003.75 : 18,012.15 = 5,847.75 : x
2. Step 2: Convert to fraction form
   12,003.75/18,012.15 = 5,847.75/x
3. Step 3: Cross multiply
   12,003.75x = 18,012.15 × 5,847.75
4. Step 4: Simplify right side
   12,003.75x = 105,330,550.16
5. Step 5: Solve for x
   x = 105,330,550.16/12,003.75
6. Step 6: Final answer
   x = 8,774.80