Finding the Fourth Proportional to 7,009.72, 10,499.99 and 3,314.90

Step by Step Solution

1. Step 1: Write the proportion equation
   7,009.72 : 10,499.99 = 3,314.90 : x
2. Step 2: Convert to fraction form
   7,009.72/10,499.99 = 3,314.90/x
3. Step 3: Cross multiply
   7,009.72x = 10,499.99 × 3,314.90
4. Step 4: Simplify right side
   7,009.72x = 34,806,416.85
5. Step 5: Solve for x
   x = 34,806,416.85/7,009.72
6. Step 6: Final answer
   x = 4,965.45