Finding the Fourth Proportional to 23,187.83, 31,999.22 and 13,116.06

Step by Step Solution

1. Step 1: Write the proportion equation
   23,187.83 : 31,999.22 = 13,116.06 : x
2. Step 2: Convert to fraction form
   23,187.83/31,999.22 = 13,116.06/x
3. Step 3: Cross multiply
   23,187.83x = 31,999.22 × 13,116.06
4. Step 4: Simplify right side
   23,187.83x = 419,703,623.89
5. Step 5: Solve for x
   x = 419,703,623.89/23,187.83
6. Step 6: Final answer
   x = 18,100.17