Finding the Fourth Proportional to 86,428.50, 119,271.33 and 48,704.10

Step by Step Solution

1. Step 1: Write the proportion equation
   86,428.50 : 119,271.33 = 48,704.10 : x
2. Step 2: Convert to fraction form
   86,428.50/119,271.33 = 48,704.10/x
3. Step 3: Cross multiply
   86,428.50x = 119,271.33 × 48,704.10
4. Step 4: Simplify right side
   86,428.50x = 5,809,002,783.45
5. Step 5: Solve for x
   x = 5,809,002,783.45/86,428.50
6. Step 6: Final answer
   x = 67,211.66