Finding the Fourth Proportional to 23,108.31, 31,889.43 and 13,036.73

Step by Step Solution

1. Step 1: Write the proportion equation
   23,108.31 : 31,889.43 = 13,036.73 : x
2. Step 2: Convert to fraction form
   23,108.31/31,889.43 = 13,036.73/x
3. Step 3: Cross multiply
   23,108.31x = 31,889.43 × 13,036.73
4. Step 4: Simplify right side
   23,108.31x = 415,733,729.32
5. Step 5: Solve for x
   x = 415,733,729.32/23,108.31
6. Step 6: Final answer
   x = 17,990.66