Finding the Fourth Proportional to 7,510.42, 11,259.42 and 3,131.02

Step by Step Solution

1. Step 1: Write the proportion equation
   7,510.42 : 11,259.42 = 3,131.02 : x
2. Step 2: Convert to fraction form
   7,510.42/11,259.42 = 3,131.02/x
3. Step 3: Cross multiply
   7,510.42x = 11,259.42 × 3,131.02
4. Step 4: Simplify right side
   7,510.42x = 35,253,469.21
5. Step 5: Solve for x
   x = 35,253,469.21/7,510.42
6. Step 6: Final answer
   x = 4,693.94