Finding the Fourth Proportional to 7,402.52, 10,215.15 and 4,045.18

Step by Step Solution

1. Step 1: Write the proportion equation
   7,402.52 : 10,215.15 = 4,045.18 : x
2. Step 2: Convert to fraction form
   7,402.52/10,215.15 = 4,045.18/x
3. Step 3: Cross multiply
   7,402.52x = 10,215.15 × 4,045.18
4. Step 4: Simplify right side
   7,402.52x = 41,322,120.48
5. Step 5: Solve for x
   x = 41,322,120.48/7,402.52
6. Step 6: Final answer
   x = 5,582.17