Finding the Fourth Proportional to 13,733.58, 20,608.83 and 5,412.15

Step by Step Solution

1. Step 1: Write the proportion equation
   13,733.58 : 20,608.83 = 5,412.15 : x
2. Step 2: Convert to fraction form
   13,733.58/20,608.83 = 5,412.15/x
3. Step 3: Cross multiply
   13,733.58x = 20,608.83 × 5,412.15
4. Step 4: Simplify right side
   13,733.58x = 111,538,079.28
5. Step 5: Solve for x
   x = 111,538,079.28/13,733.58
6. Step 6: Final answer
   x = 8,121.56