Finding the Fourth Proportional to 47,301.02, 65,286.78 and 28,434.50

Step by Step Solution

1. Step 1: Write the proportion equation
   47,301.02 : 65,286.78 = 28,434.50 : x
2. Step 2: Convert to fraction form
   47,301.02/65,286.78 = 28,434.50/x
3. Step 3: Cross multiply
   47,301.02x = 65,286.78 × 28,434.50
4. Step 4: Simplify right side
   47,301.02x = 1,856,396,945.91
5. Step 5: Solve for x
   x = 1,856,396,945.91/47,301.02
6. Step 6: Final answer
   x = 39,246.45