Finding the Fourth Proportional to 13,473.62, 20,208.89 and 3,612.13

Step by Step Solution

1. Step 1: Write the proportion equation
   13,473.62 : 20,208.89 = 3,612.13 : x
2. Step 2: Convert to fraction form
   13,473.62/20,208.89 = 3,612.13/x
3. Step 3: Cross multiply
   13,473.62x = 20,208.89 × 3,612.13
4. Step 4: Simplify right side
   13,473.62x = 72,997,076.03
5. Step 5: Solve for x
   x = 72,997,076.03/13,473.62
6. Step 6: Final answer
   x = 5,417.78