Finding the Fourth Proportional to 64,525.42, 89,077.46 and 40,339.83

Step by Step Solution

1. Step 1: Write the proportion equation
   64,525.42 : 89,077.46 = 40,339.83 : x
2. Step 2: Convert to fraction form
   64,525.42/89,077.46 = 40,339.83/x
3. Step 3: Cross multiply
   64,525.42x = 89,077.46 × 40,339.83
4. Step 4: Simplify right side
   64,525.42x = 3,593,369,198.27
5. Step 5: Solve for x
   x = 3,593,369,198.27/64,525.42
6. Step 6: Final answer
   x = 55,689.20