Finding the Fourth Proportional to 39,196.50, 54,092.16 and 21,291.51

Step by Step Solution

1. Step 1: Write the proportion equation
   39,196.50 : 54,092.16 = 21,291.51 : x
2. Step 2: Convert to fraction form
   39,196.50/54,092.16 = 21,291.51/x
3. Step 3: Cross multiply
   39,196.50x = 54,092.16 × 21,291.51
4. Step 4: Simplify right side
   39,196.50x = 1,151,703,765.56
5. Step 5: Solve for x
   x = 1,151,703,765.56/39,196.50
6. Step 6: Final answer
   x = 29,382.82