Finding the Fourth Proportional to 86,406.42, 119,234.79 and 47,642.52

Step by Step Solution

1. Step 1: Write the proportion equation
   86,406.42 : 119,234.79 = 47,642.52 : x
2. Step 2: Convert to fraction form
   86,406.42/119,234.79 = 47,642.52/x
3. Step 3: Cross multiply
   86,406.42x = 119,234.79 × 47,642.52
4. Step 4: Simplify right side
   86,406.42x = 5,680,645,867.27
5. Step 5: Solve for x
   x = 5,680,645,867.27/86,406.42
6. Step 6: Final answer
   x = 65,743.33