Finding the Fourth Proportional to 22,742.43, 31,385.42 and 13,182.63

Step by Step Solution

1. Step 1: Write the proportion equation
   22,742.43 : 31,385.42 = 13,182.63 : x
2. Step 2: Convert to fraction form
   22,742.43/31,385.42 = 13,182.63/x
3. Step 3: Cross multiply
   22,742.43x = 31,385.42 × 13,182.63
4. Step 4: Simplify right side
   22,742.43x = 413,742,379.25
5. Step 5: Solve for x
   x = 413,742,379.25/22,742.43
6. Step 6: Final answer
   x = 18,192.53