Finding the Fourth Proportional to 22,869.58, 31,562.82 and 13,918

Step by Step Solution

1. Step 1: Write the proportion equation
   22,869.58 : 31,562.82 = 13,918 : x
2. Step 2: Convert to fraction form
   22,869.58/31,562.82 = 13,918/x
3. Step 3: Cross multiply
   22,869.58x = 31,562.82 × 13,918
4. Step 4: Simplify right side
   22,869.58x = 439,291,328.76
5. Step 5: Solve for x
   x = 439,291,328.76/22,869.58
6. Step 6: Final answer
   x = 19,208.54