Finding the Fourth Proportional to 22,534.34, 31,097.60 and 13,580.12

Step by Step Solution

1. Step 1: Write the proportion equation
   22,534.34 : 31,097.60 = 13,580.12 : x
2. Step 2: Convert to fraction form
   22,534.34/31,097.60 = 13,580.12/x
3. Step 3: Cross multiply
   22,534.34x = 31,097.60 × 13,580.12
4. Step 4: Simplify right side
   22,534.34x = 422,309,067.83
5. Step 5: Solve for x
   x = 422,309,067.83/22,534.34
6. Step 6: Final answer
   x = 18,740.69