Finding the Fourth Proportional to 13,550.51, 20,326.98 and 3,689.84

Step by Step Solution

1. Step 1: Write the proportion equation
   13,550.51 : 20,326.98 = 3,689.84 : x
2. Step 2: Convert to fraction form
   13,550.51/20,326.98 = 3,689.84/x
3. Step 3: Cross multiply
   13,550.51x = 20,326.98 × 3,689.84
4. Step 4: Simplify right side
   13,550.51x = 75,003,303.88
5. Step 5: Solve for x
   x = 75,003,303.88/13,550.51
6. Step 6: Final answer
   x = 5,535.09