Finding the Fourth Proportional to 13,494.51, 20,239.47 and 3,631.59

Step by Step Solution

1. Step 1: Write the proportion equation
   13,494.51 : 20,239.47 = 3,631.59 : x
2. Step 2: Convert to fraction form
   13,494.51/20,239.47 = 3,631.59/x
3. Step 3: Cross multiply
   13,494.51x = 20,239.47 × 3,631.59
4. Step 4: Simplify right side
   13,494.51x = 73,501,456.86
5. Step 5: Solve for x
   x = 73,501,456.86/13,494.51
6. Step 6: Final answer
   x = 5,446.77