Finding the Fourth Proportional to 13,087.20, 19,633.38 and 3,727.59

Step by Step Solution

1. Step 1: Write the proportion equation
   13,087.20 : 19,633.38 = 3,727.59 : x
2. Step 2: Convert to fraction form
   13,087.20/19,633.38 = 3,727.59/x
3. Step 3: Cross multiply
   13,087.20x = 19,633.38 × 3,727.59
4. Step 4: Simplify right side
   13,087.20x = 73,185,190.95
5. Step 5: Solve for x
   x = 73,185,190.95/13,087.20
6. Step 6: Final answer
   x = 5,592.12