Finding the Fourth Proportional to 9,931.36, 14,892.96 and 3,691.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,931.36 : 14,892.96 = 3,691.76 : x
2. Step 2: Convert to fraction form
   9,931.36/14,892.96 = 3,691.76/x
3. Step 3: Cross multiply
   9,931.36x = 14,892.96 × 3,691.76
4. Step 4: Simplify right side
   9,931.36x = 54,981,234.01
5. Step 5: Solve for x
   x = 54,981,234.01/9,931.36
6. Step 6: Final answer
   x = 5,536.12