Finding the Fourth Proportional to 20,606.72, 30,913.16 and 7,462.15

Step by Step Solution

1. Step 1: Write the proportion equation
   20,606.72 : 30,913.16 = 7,462.15 : x
2. Step 2: Convert to fraction form
   20,606.72/30,913.16 = 7,462.15/x
3. Step 3: Cross multiply
   20,606.72x = 30,913.16 × 7,462.15
4. Step 4: Simplify right side
   20,606.72x = 230,678,522.30
5. Step 5: Solve for x
   x = 230,678,522.30/20,606.72
6. Step 6: Final answer
   x = 11,194.34