Finding the Fourth Proportional to 20,570.02, 30,854.99 and 7,422.37

Step by Step Solution

1. Step 1: Write the proportion equation
   20,570.02 : 30,854.99 = 7,422.37 : x
2. Step 2: Convert to fraction form
   20,570.02/30,854.99 = 7,422.37/x
3. Step 3: Cross multiply
   20,570.02x = 30,854.99 × 7,422.37
4. Step 4: Simplify right side
   20,570.02x = 229,017,093.54
5. Step 5: Solve for x
   x = 229,017,093.54/20,570.02
6. Step 6: Final answer
   x = 11,133.54