Finding the Fourth Proportional to 10,777.72, 16,147.86 and 7,492.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,777.72 : 16,147.86 = 7,492.96 : x
2. Step 2: Convert to fraction form
   10,777.72/16,147.86 = 7,492.96/x
3. Step 3: Cross multiply
   10,777.72x = 16,147.86 × 7,492.96
4. Step 4: Simplify right side
   10,777.72x = 120,995,269.07
5. Step 5: Solve for x
   x = 120,995,269.07/10,777.72
6. Step 6: Final answer
   x = 11,226.43