Finding the Fourth Proportional to 65,714.72, 90,591.36 and 52,291.52

Step by Step Solution

1. Step 1: Write the proportion equation
   65,714.72 : 90,591.36 = 52,291.52 : x
2. Step 2: Convert to fraction form
   65,714.72/90,591.36 = 52,291.52/x
3. Step 3: Cross multiply
   65,714.72x = 90,591.36 × 52,291.52
4. Step 4: Simplify right side
   65,714.72x = 4,737,159,913.27
5. Step 5: Solve for x
   x = 4,737,159,913.27/65,714.72
6. Step 6: Final answer
   x = 72,086.74