Finding the Fourth Proportional to 23,187.84, 31,992.96 and 14,238.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,187.84 : 31,992.96 = 14,238.72 : x
2. Step 2: Convert to fraction form
   23,187.84/31,992.96 = 14,238.72/x
3. Step 3: Cross multiply
   23,187.84x = 31,992.96 × 14,238.72
4. Step 4: Simplify right side
   23,187.84x = 455,538,799.41
5. Step 5: Solve for x
   x = 455,538,799.41/23,187.84
6. Step 6: Final answer
   x = 19,645.59