Finding the Fourth Proportional to 22,570.93, 31,145.71 and 13,494.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,570.93 : 31,145.71 = 13,494.50 : x
2. Step 2: Convert to fraction form
   22,570.93/31,145.71 = 13,494.50/x
3. Step 3: Cross multiply
   22,570.93x = 31,145.71 × 13,494.50
4. Step 4: Simplify right side
   22,570.93x = 420,295,783.60
5. Step 5: Solve for x
   x = 420,295,783.60/22,570.93
6. Step 6: Final answer
   x = 18,621.11