Finding the Fourth Proportional to 87,949.72, 121,370.71 and 47,663.48

Step by Step Solution

1. Step 1: Write the proportion equation
   87,949.72 : 121,370.71 = 47,663.48 : x
2. Step 2: Convert to fraction form
   87,949.72/121,370.71 = 47,663.48/x
3. Step 3: Cross multiply
   87,949.72x = 121,370.71 × 47,663.48
4. Step 4: Simplify right side
   87,949.72x = 5,784,949,563.50
5. Step 5: Solve for x
   x = 5,784,949,563.50/87,949.72
6. Step 6: Final answer
   x = 65,775.65