Finding the Fourth Proportional to 8,604.99, 11,870.37 and 7,104.15

Step by Step Solution

1. Step 1: Write the proportion equation
   8,604.99 : 11,870.37 = 7,104.15 : x
2. Step 2: Convert to fraction form
   8,604.99/11,870.37 = 7,104.15/x
3. Step 3: Cross multiply
   8,604.99x = 11,870.37 × 7,104.15
4. Step 4: Simplify right side
   8,604.99x = 84,328,889.04
5. Step 5: Solve for x
   x = 84,328,889.04/8,604.99
6. Step 6: Final answer
   x = 9,800.00