Finding the Fourth Proportional to 47,530.31, 65,587.33 and 28,406.28

Step by Step Solution

1. Step 1: Write the proportion equation
   47,530.31 : 65,587.33 = 28,406.28 : x
2. Step 2: Convert to fraction form
   47,530.31/65,587.33 = 28,406.28/x
3. Step 3: Cross multiply
   47,530.31x = 65,587.33 × 28,406.28
4. Step 4: Simplify right side
   47,530.31x = 1,863,092,060.43
5. Step 5: Solve for x
   x = 1,863,092,060.43/47,530.31
6. Step 6: Final answer
   x = 39,197.98