Finding the Fourth Proportional to 114,701.50, 158,289.90 and 64,399.42

Step by Step Solution

1. Step 1: Write the proportion equation
   114,701.50 : 158,289.90 = 64,399.42 : x
2. Step 2: Convert to fraction form
   114,701.50/158,289.90 = 64,399.42/x
3. Step 3: Cross multiply
   114,701.50x = 158,289.90 × 64,399.42
4. Step 4: Simplify right side
   114,701.50x = 10,193,777,751.86
5. Step 5: Solve for x
   x = 10,193,777,751.86/114,701.50
6. Step 6: Final answer
   x = 88,872.23