Finding the Fourth Proportional to 47,308.32, 65,224.56 and 38,778.72

Step by Step Solution

1. Step 1: Write the proportion equation
   47,308.32 : 65,224.56 = 38,778.72 : x
2. Step 2: Convert to fraction form
   47,308.32/65,224.56 = 38,778.72/x
3. Step 3: Cross multiply
   47,308.32x = 65,224.56 × 38,778.72
4. Step 4: Simplify right side
   47,308.32x = 2,529,324,949.36
5. Step 5: Solve for x
   x = 2,529,324,949.36/47,308.32
6. Step 6: Final answer
   x = 53,464.70