Finding the Fourth Proportional to 22,580.82, 31,162.05 and 13,145.94

Step by Step Solution

1. Step 1: Write the proportion equation
   22,580.82 : 31,162.05 = 13,145.94 : x
2. Step 2: Convert to fraction form
   22,580.82/31,162.05 = 13,145.94/x
3. Step 3: Cross multiply
   22,580.82x = 31,162.05 × 13,145.94
4. Step 4: Simplify right side
   22,580.82x = 409,654,439.58
5. Step 5: Solve for x
   x = 409,654,439.58/22,580.82
6. Step 6: Final answer
   x = 18,141.70