Finding the Fourth Proportional to 12,111.21, 16,714.35 and 7,396.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,111.21 : 16,714.35 = 7,396.38 : x
2. Step 2: Convert to fraction form
   12,111.21/16,714.35 = 7,396.38/x
3. Step 3: Cross multiply
   12,111.21x = 16,714.35 × 7,396.38
4. Step 4: Simplify right side
   12,111.21x = 123,625,684.05
5. Step 5: Solve for x
   x = 123,625,684.05/12,111.21
6. Step 6: Final answer
   x = 10,207.54