Finding the Fourth Proportional to 36,825.59, 55,221.98 and 13,435.63

Step by Step Solution

1. Step 1: Write the proportion equation
   36,825.59 : 55,221.98 = 13,435.63 : x
2. Step 2: Convert to fraction form
   36,825.59/55,221.98 = 13,435.63/x
3. Step 3: Cross multiply
   36,825.59x = 55,221.98 × 13,435.63
4. Step 4: Simplify right side
   36,825.59x = 741,942,091.15
5. Step 5: Solve for x
   x = 741,942,091.15/36,825.59
6. Step 6: Final answer
   x = 20,147.46