Finding the Fourth Proportional to 7,066.79, 10,601.91 and 4,990.85

Step by Step Solution

1. Step 1: Write the proportion equation
   7,066.79 : 10,601.91 = 4,990.85 : x
2. Step 2: Convert to fraction form
   7,066.79/10,601.91 = 4,990.85/x
3. Step 3: Cross multiply
   7,066.79x = 10,601.91 × 4,990.85
4. Step 4: Simplify right side
   7,066.79x = 52,912,529.27
5. Step 5: Solve for x
   x = 52,912,529.27/7,066.79
6. Step 6: Final answer
   x = 7,487.49