Finding the Fourth Proportional to 7,111.68, 9,814.52 and 3,924.96

Step by Step Solution

1. Step 1: Write the proportion equation
   7,111.68 : 9,814.52 = 3,924.96 : x
2. Step 2: Convert to fraction form
   7,111.68/9,814.52 = 3,924.96/x
3. Step 3: Cross multiply
   7,111.68x = 9,814.52 × 3,924.96
4. Step 4: Simplify right side
   7,111.68x = 38,521,598.42
5. Step 5: Solve for x
   x = 38,521,598.42/7,111.68
6. Step 6: Final answer
   x = 5,416.67