Finding the Fourth Proportional to 33,200.60, 49,800.69 and 13,478.96

Step by Step Solution

1. Step 1: Write the proportion equation
   33,200.60 : 49,800.69 = 13,478.96 : x
2. Step 2: Convert to fraction form
   33,200.60/49,800.69 = 13,478.96/x
3. Step 3: Cross multiply
   33,200.60x = 49,800.69 × 13,478.96
4. Step 4: Simplify right side
   33,200.60x = 671,261,508.48
5. Step 5: Solve for x
   x = 671,261,508.48/33,200.60
6. Step 6: Final answer
   x = 20,218.35