Finding the Fourth Proportional to 47,430.42, 65,460.86 and 28,311

Step by Step Solution

1. Step 1: Write the proportion equation
   47,430.42 : 65,460.86 = 28,311 : x
2. Step 2: Convert to fraction form
   47,430.42/65,460.86 = 28,311/x
3. Step 3: Cross multiply
   47,430.42x = 65,460.86 × 28,311
4. Step 4: Simplify right side
   47,430.42x = 1,853,262,265.91
5. Step 5: Solve for x
   x = 1,853,262,265.91/47,430.42
6. Step 6: Final answer
   x = 39,073.28