Finding the Fourth Proportional to 10,145.73, 15,218.61 and 3,570.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,145.73 : 15,218.61 = 3,570.42 : x
2. Step 2: Convert to fraction form
   10,145.73/15,218.61 = 3,570.42/x
3. Step 3: Cross multiply
   10,145.73x = 15,218.61 × 3,570.42
4. Step 4: Simplify right side
   10,145.73x = 54,336,829.52
5. Step 5: Solve for x
   x = 54,336,829.52/10,145.73
6. Step 6: Final answer
   x = 5,355.64