Finding the Fourth Proportional to 7,419.78, 10,238.88 and 4,062.57

Step by Step Solution

1. Step 1: Write the proportion equation
   7,419.78 : 10,238.88 = 4,062.57 : x
2. Step 2: Convert to fraction form
   7,419.78/10,238.88 = 4,062.57/x
3. Step 3: Cross multiply
   7,419.78x = 10,238.88 × 4,062.57
4. Step 4: Simplify right side
   7,419.78x = 41,596,166.72
5. Step 5: Solve for x
   x = 41,596,166.72/7,419.78
6. Step 6: Final answer
   x = 5,606.12