Finding the Fourth Proportional to 23,196.72, 31,992.12 and 18,997.68

Step by Step Solution

1. Step 1: Write the proportion equation
   23,196.72 : 31,992.12 = 18,997.68 : x
2. Step 2: Convert to fraction form
   23,196.72/31,992.12 = 18,997.68/x
3. Step 3: Cross multiply
   23,196.72x = 31,992.12 × 18,997.68
4. Step 4: Simplify right side
   23,196.72x = 607,776,058.28
5. Step 5: Solve for x
   x = 607,776,058.28/23,196.72
6. Step 6: Final answer
   x = 26,200.95