Finding the Fourth Proportional to 12,196.56, 16,830.38 and 7,091.58

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.56 : 16,830.38 = 7,091.58 : x
2. Step 2: Convert to fraction form
   12,196.56/16,830.38 = 7,091.58/x
3. Step 3: Cross multiply
   12,196.56x = 16,830.38 × 7,091.58
4. Step 4: Simplify right side
   12,196.56x = 119,353,950.74
5. Step 5: Solve for x
   x = 119,353,950.74/12,196.56
6. Step 6: Final answer
   x = 9,785.87