Finding the Fourth Proportional to 39,196.37, 54,091.26 and 21,291.37

Step by Step Solution

1. Step 1: Write the proportion equation
   39,196.37 : 54,091.26 = 21,291.37 : x
2. Step 2: Convert to fraction form
   39,196.37/54,091.26 = 21,291.37/x
3. Step 3: Cross multiply
   39,196.37x = 54,091.26 × 21,291.37
4. Step 4: Simplify right side
   39,196.37x = 1,151,677,030.43
5. Step 5: Solve for x
   x = 1,151,677,030.43/39,196.37
6. Step 6: Final answer
   x = 29,382.24