Finding the Fourth Proportional to 12,196.08, 16,830.90 and 7,477.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.08 : 16,830.90 = 7,477.56 : x
2. Step 2: Convert to fraction form
   12,196.08/16,830.90 = 7,477.56/x
3. Step 3: Cross multiply
   12,196.08x = 16,830.90 × 7,477.56
4. Step 4: Simplify right side
   12,196.08x = 125,854,064.60
5. Step 5: Solve for x
   x = 125,854,064.60/12,196.08
6. Step 6: Final answer
   x = 10,319.22