Finding the Fourth Proportional to 10,018.65, 13,825.80 and 5,542.47

Step by Step Solution

1. Step 1: Write the proportion equation
   10,018.65 : 13,825.80 = 5,542.47 : x
2. Step 2: Convert to fraction form
   10,018.65/13,825.80 = 5,542.47/x
3. Step 3: Cross multiply
   10,018.65x = 13,825.80 × 5,542.47
4. Step 4: Simplify right side
   10,018.65x = 76,629,081.73
5. Step 5: Solve for x
   x = 76,629,081.73/10,018.65
6. Step 6: Final answer
   x = 7,648.64