Finding the Fourth Proportional to 39,196.62, 54,091.73 and 21,291.98

Step by Step Solution

1. Step 1: Write the proportion equation
   39,196.62 : 54,091.73 = 21,291.98 : x
2. Step 2: Convert to fraction form
   39,196.62/54,091.73 = 21,291.98/x
3. Step 3: Cross multiply
   39,196.62x = 54,091.73 × 21,291.98
4. Step 4: Simplify right side
   39,196.62x = 1,151,719,816.10
5. Step 5: Solve for x
   x = 1,151,719,816.10/39,196.62
6. Step 6: Final answer
   x = 29,383.14