Finding the Fourth Proportional to 39,272.56, 54,196.37 and 21,367.69

Step by Step Solution

1. Step 1: Write the proportion equation
   39,272.56 : 54,196.37 = 21,367.69 : x
2. Step 2: Convert to fraction form
   39,272.56/54,196.37 = 21,367.69/x
3. Step 3: Cross multiply
   39,272.56x = 54,196.37 × 21,367.69
4. Step 4: Simplify right side
   39,272.56x = 1,158,051,233.29
5. Step 5: Solve for x
   x = 1,158,051,233.29/39,272.56
6. Step 6: Final answer
   x = 29,487.54