Finding the Fourth Proportional to 41,727.21, 57,552.16 and 28,980.42

Step by Step Solution

1. Step 1: Write the proportion equation
   41,727.21 : 57,552.16 = 28,980.42 : x
2. Step 2: Convert to fraction form
   41,727.21/57,552.16 = 28,980.42/x
3. Step 3: Cross multiply
   41,727.21x = 57,552.16 × 28,980.42
4. Step 4: Simplify right side
   41,727.21x = 1,667,885,768.71
5. Step 5: Solve for x
   x = 1,667,885,768.71/41,727.21
6. Step 6: Final answer
   x = 39,971.18