Finding the Fourth Proportional to 39,101.03, 53,959.69 and 21,196.31

Step by Step Solution

1. Step 1: Write the proportion equation
   39,101.03 : 53,959.69 = 21,196.31 : x
2. Step 2: Convert to fraction form
   39,101.03/53,959.69 = 21,196.31/x
3. Step 3: Cross multiply
   39,101.03x = 53,959.69 × 21,196.31
4. Step 4: Simplify right side
   39,101.03x = 1,143,746,478.14
5. Step 5: Solve for x
   x = 1,143,746,478.14/39,101.03
6. Step 6: Final answer
   x = 29,251.06