Finding the Fourth Proportional to 10,962.72, 16,420.48 and 7,266.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,962.72 : 16,420.48 = 7,266.72 : x
2. Step 2: Convert to fraction form
   10,962.72/16,420.48 = 7,266.72/x
3. Step 3: Cross multiply
   10,962.72x = 16,420.48 × 7,266.72
4. Step 4: Simplify right side
   10,962.72x = 119,323,030.43
5. Step 5: Solve for x
   x = 119,323,030.43/10,962.72
6. Step 6: Final answer
   x = 10,884.44