Finding the Fourth Proportional to 7,340.14, 10,128.87 and 4,153.42

Step by Step Solution

1. Step 1: Write the proportion equation
   7,340.14 : 10,128.87 = 4,153.42 : x
2. Step 2: Convert to fraction form
   7,340.14/10,128.87 = 4,153.42/x
3. Step 3: Cross multiply
   7,340.14x = 10,128.87 × 4,153.42
4. Step 4: Simplify right side
   7,340.14x = 42,069,451.24
5. Step 5: Solve for x
   x = 42,069,451.24/7,340.14
6. Step 6: Final answer
   x = 5,731.42