Finding the Fourth Proportional to 7,150.37, 10,715.35 and 3,142.96

Step by Step Solution

1. Step 1: Write the proportion equation
   7,150.37 : 10,715.35 = 3,142.96 : x
2. Step 2: Convert to fraction form
   7,150.37/10,715.35 = 3,142.96/x
3. Step 3: Cross multiply
   7,150.37x = 10,715.35 × 3,142.96
4. Step 4: Simplify right side
   7,150.37x = 33,677,900.72
5. Step 5: Solve for x
   x = 33,677,900.72/7,150.37
6. Step 6: Final answer
   x = 4,709.95