Finding the Fourth Proportional to 12,111.28, 16,714.20 and 7,395.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,111.28 : 16,714.20 = 7,395.28 : x
2. Step 2: Convert to fraction form
   12,111.28/16,714.20 = 7,395.28/x
3. Step 3: Cross multiply
   12,111.28x = 16,714.20 × 7,395.28
4. Step 4: Simplify right side
   12,111.28x = 123,606,188.98
5. Step 5: Solve for x
   x = 123,606,188.98/12,111.28
6. Step 6: Final answer
   x = 10,205.87