Finding the Fourth Proportional to 4,659.27, 7,003.31 and 4,428.87

Step by Step Solution

1. Step 1: Write the proportion equation
   4,659.27 : 7,003.31 = 4,428.87 : x
2. Step 2: Convert to fraction form
   4,659.27/7,003.31 = 4,428.87/x
3. Step 3: Cross multiply
   4,659.27x = 7,003.31 × 4,428.87
4. Step 4: Simplify right side
   4,659.27x = 31,016,727.42
5. Step 5: Solve for x
   x = 31,016,727.42/4,659.27
6. Step 6: Final answer
   x = 6,656.99