Finding the Fourth Proportional to 8,903.72, 12,285.06 and 5,367.08

Step by Step Solution

1. Step 1: Write the proportion equation
   8,903.72 : 12,285.06 = 5,367.08 : x
2. Step 2: Convert to fraction form
   8,903.72/12,285.06 = 5,367.08/x
3. Step 3: Cross multiply
   8,903.72x = 12,285.06 × 5,367.08
4. Step 4: Simplify right side
   8,903.72x = 65,934,899.82
5. Step 5: Solve for x
   x = 65,934,899.82/8,903.72
6. Step 6: Final answer
   x = 7,405.32