Finding the Fourth Proportional to 7,370.05, 10,153.37 and 5,128.07

Step by Step Solution

1. Step 1: Write the proportion equation
   7,370.05 : 10,153.37 = 5,128.07 : x
2. Step 2: Convert to fraction form
   7,370.05/10,153.37 = 5,128.07/x
3. Step 3: Cross multiply
   7,370.05x = 10,153.37 × 5,128.07
4. Step 4: Simplify right side
   7,370.05x = 52,067,192.10
5. Step 5: Solve for x
   x = 52,067,192.10/7,370.05
6. Step 6: Final answer
   x = 7,064.70