Finding the Fourth Proportional to 13,461.54, 20,190.72 and 3,601.58

Step by Step Solution

1. Step 1: Write the proportion equation
   13,461.54 : 20,190.72 = 3,601.58 : x
2. Step 2: Convert to fraction form
   13,461.54/20,190.72 = 3,601.58/x
3. Step 3: Cross multiply
   13,461.54x = 20,190.72 × 3,601.58
4. Step 4: Simplify right side
   13,461.54x = 72,718,493.34
5. Step 5: Solve for x
   x = 72,718,493.34/13,461.54
6. Step 6: Final answer
   x = 5,401.94