Finding the Fourth Proportional to 39,573.14, 54,610.72 and 21,667.82

Step by Step Solution

1. Step 1: Write the proportion equation
   39,573.14 : 54,610.72 = 21,667.82 : x
2. Step 2: Convert to fraction form
   39,573.14/54,610.72 = 21,667.82/x
3. Step 3: Cross multiply
   39,573.14x = 54,610.72 × 21,667.82
4. Step 4: Simplify right side
   39,573.14x = 1,183,295,251.03
5. Step 5: Solve for x
   x = 1,183,295,251.03/39,573.14
6. Step 6: Final answer
   x = 29,901.47