Finding the Fourth Proportional to 7,004.70, 10,510.74 and 3,109.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,004.70 : 10,510.74 = 3,109.50 : x
2. Step 2: Convert to fraction form
   7,004.70/10,510.74 = 3,109.50/x
3. Step 3: Cross multiply
   7,004.70x = 10,510.74 × 3,109.50
4. Step 4: Simplify right side
   7,004.70x = 32,683,146.03
5. Step 5: Solve for x
   x = 32,683,146.03/7,004.70
6. Step 6: Final answer
   x = 4,665.89