Finding the Fourth Proportional to 4,924.18, 7,393.56 and 4,686.31

Step by Step Solution

1. Step 1: Write the proportion equation
   4,924.18 : 7,393.56 = 4,686.31 : x
2. Step 2: Convert to fraction form
   4,924.18/7,393.56 = 4,686.31/x
3. Step 3: Cross multiply
   4,924.18x = 7,393.56 × 4,686.31
4. Step 4: Simplify right side
   4,924.18x = 34,648,514.16
5. Step 5: Solve for x
   x = 34,648,514.16/4,924.18
6. Step 6: Final answer
   x = 7,036.40