Finding the Fourth Proportional to 13,624.72, 20,436.67 and 3,764.59

Step by Step Solution

1. Step 1: Write the proportion equation
   13,624.72 : 20,436.67 = 3,764.59 : x
2. Step 2: Convert to fraction form
   13,624.72/20,436.67 = 3,764.59/x
3. Step 3: Cross multiply
   13,624.72x = 20,436.67 × 3,764.59
4. Step 4: Simplify right side
   13,624.72x = 76,935,683.52
5. Step 5: Solve for x
   x = 76,935,683.52/13,624.72
6. Step 6: Final answer
   x = 5,646.77