Finding the Fourth Proportional to 12,800.83, 17,673.32 and 12,179.35

Step by Step Solution

1. Step 1: Write the proportion equation
   12,800.83 : 17,673.32 = 12,179.35 : x
2. Step 2: Convert to fraction form
   12,800.83/17,673.32 = 12,179.35/x
3. Step 3: Cross multiply
   12,800.83x = 17,673.32 × 12,179.35
4. Step 4: Simplify right side
   12,800.83x = 215,249,549.94
5. Step 5: Solve for x
   x = 215,249,549.94/12,800.83
6. Step 6: Final answer
   x = 16,815.28