Finding the Fourth Proportional to 17,867.82, 26,796.23 and 12,356.58

Step by Step Solution

1. Step 1: Write the proportion equation
   17,867.82 : 26,796.23 = 12,356.58 : x
2. Step 2: Convert to fraction form
   17,867.82/26,796.23 = 12,356.58/x
3. Step 3: Cross multiply
   17,867.82x = 26,796.23 × 12,356.58
4. Step 4: Simplify right side
   17,867.82x = 331,109,759.69
5. Step 5: Solve for x
   x = 331,109,759.69/17,867.82
6. Step 6: Final answer
   x = 18,531.07