Finding the Fourth Proportional to 87,945.51, 131,946.52 and 28,767.72

Step by Step Solution

1. Step 1: Write the proportion equation
   87,945.51 : 131,946.52 = 28,767.72 : x
2. Step 2: Convert to fraction form
   87,945.51/131,946.52 = 28,767.72/x
3. Step 3: Cross multiply
   87,945.51x = 131,946.52 × 28,767.72
4. Step 4: Simplify right side
   87,945.51x = 3,795,800,542.33
5. Step 5: Solve for x
   x = 3,795,800,542.33/87,945.51
6. Step 6: Final answer
   x = 43,160.82