Finding the Fourth Proportional to 10,018.71, 13,825.91 and 5,542.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,018.71 : 13,825.91 = 5,542.61 : x
2. Step 2: Convert to fraction form
   10,018.71/13,825.91 = 5,542.61/x
3. Step 3: Cross multiply
   10,018.71x = 13,825.91 × 5,542.61
4. Step 4: Simplify right side
   10,018.71x = 76,631,530.18
5. Step 5: Solve for x
   x = 76,631,530.18/10,018.71
6. Step 6: Final answer
   x = 7,648.84