Finding the Fourth Proportional to 12,205.58, 16,843.61 and 6,900.39

Step by Step Solution

1. Step 1: Write the proportion equation
   12,205.58 : 16,843.61 = 6,900.39 : x
2. Step 2: Convert to fraction form
   12,205.58/16,843.61 = 6,900.39/x
3. Step 3: Cross multiply
   12,205.58x = 16,843.61 × 6,900.39
4. Step 4: Simplify right side
   12,205.58x = 116,227,443.51
5. Step 5: Solve for x
   x = 116,227,443.51/12,205.58
6. Step 6: Final answer
   x = 9,522.49