Finding the Fourth Proportional to 30,570.57, 45,859.94 and 12,098.25

Step by Step Solution

1. Step 1: Write the proportion equation
   30,570.57 : 45,859.94 = 12,098.25 : x
2. Step 2: Convert to fraction form
   30,570.57/45,859.94 = 12,098.25/x
3. Step 3: Cross multiply
   30,570.57x = 45,859.94 × 12,098.25
4. Step 4: Simplify right side
   30,570.57x = 554,825,019.11
5. Step 5: Solve for x
   x = 554,825,019.11/30,570.57
6. Step 6: Final answer
   x = 18,148.99