Finding the Fourth Proportional to 9,309.40, 12,841.88 and 5,900.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,309.40 : 12,841.88 = 5,900.16 : x
2. Step 2: Convert to fraction form
   9,309.40/12,841.88 = 5,900.16/x
3. Step 3: Cross multiply
   9,309.40x = 12,841.88 × 5,900.16
4. Step 4: Simplify right side
   9,309.40x = 75,769,146.70
5. Step 5: Solve for x
   x = 75,769,146.70/9,309.40
6. Step 6: Final answer
   x = 8,138.99