Finding the Fourth Proportional to 10,770.72, 16,158.96 and 9,742.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,770.72 : 16,158.96 = 9,742.56 : x
2. Step 2: Convert to fraction form
   10,770.72/16,158.96 = 9,742.56/x
3. Step 3: Cross multiply
   10,770.72x = 16,158.96 × 9,742.56
4. Step 4: Simplify right side
   10,770.72x = 157,429,637.34
5. Step 5: Solve for x
   x = 157,429,637.34/10,770.72
6. Step 6: Final answer
   x = 14,616.45