Finding the Fourth Proportional to 8,904.06, 12,287.61 and 5,366.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,904.06 : 12,287.61 = 5,366.34 : x
2. Step 2: Convert to fraction form
   8,904.06/12,287.61 = 5,366.34/x
3. Step 3: Cross multiply
   8,904.06x = 12,287.61 × 5,366.34
4. Step 4: Simplify right side
   8,904.06x = 65,939,493.05
5. Step 5: Solve for x
   x = 65,939,493.05/8,904.06
6. Step 6: Final answer
   x = 7,405.55