Finding the Fourth Proportional to 23,111.82, 31,896.99 and 14,157.30

Step by Step Solution

1. Step 1: Write the proportion equation
   23,111.82 : 31,896.99 = 14,157.30 : x
2. Step 2: Convert to fraction form
   23,111.82/31,896.99 = 14,157.30/x
3. Step 3: Cross multiply
   23,111.82x = 31,896.99 × 14,157.30
4. Step 4: Simplify right side
   23,111.82x = 451,575,256.53
5. Step 5: Solve for x
   x = 451,575,256.53/23,111.82
6. Step 6: Final answer
   x = 19,538.71