Finding the Fourth Proportional to 8,008.72, 11,038.81 and 5,355.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,008.72 : 11,038.81 = 5,355.16 : x
2. Step 2: Convert to fraction form
   8,008.72/11,038.81 = 5,355.16/x
3. Step 3: Cross multiply
   8,008.72x = 11,038.81 × 5,355.16
4. Step 4: Simplify right side
   8,008.72x = 59,114,593.76
5. Step 5: Solve for x
   x = 59,114,593.76/8,008.72
6. Step 6: Final answer
   x = 7,381.28