Finding the Fourth Proportional to 10,016.72, 15,024.66 and 2,621.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,016.72 : 15,024.66 = 2,621.06 : x
2. Step 2: Convert to fraction form
   10,016.72/15,024.66 = 2,621.06/x
3. Step 3: Cross multiply
   10,016.72x = 15,024.66 × 2,621.06
4. Step 4: Simplify right side
   10,016.72x = 39,380,535.34
5. Step 5: Solve for x
   x = 39,380,535.34/10,016.72
6. Step 6: Final answer
   x = 3,931.48