Finding the Fourth Proportional to 39,662.56, 59,430.72 and 20,941.92

Step by Step Solution

1. Step 1: Write the proportion equation
   39,662.56 : 59,430.72 = 20,941.92 : x
2. Step 2: Convert to fraction form
   39,662.56/59,430.72 = 20,941.92/x
3. Step 3: Cross multiply
   39,662.56x = 59,430.72 × 20,941.92
4. Step 4: Simplify right side
   39,662.56x = 1,244,593,383.78
5. Step 5: Solve for x
   x = 1,244,593,383.78/39,662.56
6. Step 6: Final answer
   x = 31,379.55