Finding the Fourth Proportional to 10,118.72, 15,181.04 and 3,545.44

Step by Step Solution

1. Step 1: Write the proportion equation
   10,118.72 : 15,181.04 = 3,545.44 : x
2. Step 2: Convert to fraction form
   10,118.72/15,181.04 = 3,545.44/x
3. Step 3: Cross multiply
   10,118.72x = 15,181.04 × 3,545.44
4. Step 4: Simplify right side
   10,118.72x = 53,823,466.46
5. Step 5: Solve for x
   x = 53,823,466.46/10,118.72
6. Step 6: Final answer
   x = 5,319.20