Finding the Fourth Proportional to 47,300.52, 65,286.09 and 28,434

Step by Step Solution

1. Step 1: Write the proportion equation
   47,300.52 : 65,286.09 = 28,434 : x
2. Step 2: Convert to fraction form
   47,300.52/65,286.09 = 28,434/x
3. Step 3: Cross multiply
   47,300.52x = 65,286.09 × 28,434
4. Step 4: Simplify right side
   47,300.52x = 1,856,344,683.06
5. Step 5: Solve for x
   x = 1,856,344,683.06/47,300.52
6. Step 6: Final answer
   x = 39,245.76