Finding the Fourth Proportional to 112,057, 154,638.66 and 67,345

Step by Step Solution

1. Step 1: Write the proportion equation
   112,057 : 154,638.66 = 67,345 : x
2. Step 2: Convert to fraction form
   112,057/154,638.66 = 67,345/x
3. Step 3: Cross multiply
   112,057x = 154,638.66 × 67,345
4. Step 4: Simplify right side
   112,057x = 10,414,140,557.70
5. Step 5: Solve for x
   x = 10,414,140,557.70/112,057
6. Step 6: Final answer
   x = 92,936.10