Finding the Fourth Proportional to 13,582.69, 20,373.12 and 3,722.05

Step by Step Solution

1. Step 1: Write the proportion equation
   13,582.69 : 20,373.12 = 3,722.05 : x
2. Step 2: Convert to fraction form
   13,582.69/20,373.12 = 3,722.05/x
3. Step 3: Cross multiply
   13,582.69x = 20,373.12 × 3,722.05
4. Step 4: Simplify right side
   13,582.69x = 75,829,796.76
5. Step 5: Solve for x
   x = 75,829,796.76/13,582.69
6. Step 6: Final answer
   x = 5,582.83