Finding the Fourth Proportional to 16,917.12, 23,343.30 and 10,111.10

Step by Step Solution

1. Step 1: Write the proportion equation
   16,917.12 : 23,343.30 = 10,111.10 : x
2. Step 2: Convert to fraction form
   16,917.12/23,343.30 = 10,111.10/x
3. Step 3: Cross multiply
   16,917.12x = 23,343.30 × 10,111.10
4. Step 4: Simplify right side
   16,917.12x = 236,026,323.91
5. Step 5: Solve for x
   x = 236,026,323.91/16,917.12
6. Step 6: Final answer
   x = 13,951.92