Finding the Fourth Proportional to 10,218.42, 14,100.48 and 5,742.36

Step by Step Solution

1. Step 1: Write the proportion equation
   10,218.42 : 14,100.48 = 5,742.36 : x
2. Step 2: Convert to fraction form
   10,218.42/14,100.48 = 5,742.36/x
3. Step 3: Cross multiply
   10,218.42x = 14,100.48 × 5,742.36
4. Step 4: Simplify right side
   10,218.42x = 80,970,032.33
5. Step 5: Solve for x
   x = 80,970,032.33/10,218.42
6. Step 6: Final answer
   x = 7,923.93