Finding the Fourth Proportional to 13,459.56, 20,187.72 and 3,598.62

Step by Step Solution

1. Step 1: Write the proportion equation
   13,459.56 : 20,187.72 = 3,598.62 : x
2. Step 2: Convert to fraction form
   13,459.56/20,187.72 = 3,598.62/x
3. Step 3: Cross multiply
   13,459.56x = 20,187.72 × 3,598.62
4. Step 4: Simplify right side
   13,459.56x = 72,647,932.95
5. Step 5: Solve for x
   x = 72,647,932.95/13,459.56
6. Step 6: Final answer
   x = 5,397.50