Finding the Fourth Proportional to 102,069, 140,855.94 and 57,357

Step by Step Solution

1. Step 1: Write the proportion equation
   102,069 : 140,855.94 = 57,357 : x
2. Step 2: Convert to fraction form
   102,069/140,855.94 = 57,357/x
3. Step 3: Cross multiply
   102,069x = 140,855.94 × 57,357
4. Step 4: Simplify right side
   102,069x = 8,079,074,150.58
5. Step 5: Solve for x
   x = 8,079,074,150.58/102,069
6. Step 6: Final answer
   x = 79,153.06