Finding the Fourth Proportional to 114,871, 158,520.42 and 64,570.12

Step by Step Solution

1. Step 1: Write the proportion equation
   114,871 : 158,520.42 = 64,570.12 : x
2. Step 2: Convert to fraction form
   114,871/158,520.42 = 64,570.12/x
3. Step 3: Cross multiply
   114,871x = 158,520.42 × 64,570.12
4. Step 4: Simplify right side
   114,871x = 10,235,682,541.85
5. Step 5: Solve for x
   x = 10,235,682,541.85/114,871
6. Step 6: Final answer
   x = 89,105.89