Finding the Fourth Proportional to 8,742.38, 12,060.64 and 5,908.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,742.38 : 12,060.64 = 5,908.72 : x
2. Step 2: Convert to fraction form
   8,742.38/12,060.64 = 5,908.72/x
3. Step 3: Cross multiply
   8,742.38x = 12,060.64 × 5,908.72
4. Step 4: Simplify right side
   8,742.38x = 71,262,944.78
5. Step 5: Solve for x
   x = 71,262,944.78/8,742.38
6. Step 6: Final answer
   x = 8,151.44