Finding the Fourth Proportional to 112,401.92, 155,065.92 and 67,664

Step by Step Solution

1. Step 1: Write the proportion equation
   112,401.92 : 155,065.92 = 67,664 : x
2. Step 2: Convert to fraction form
   112,401.92/155,065.92 = 67,664/x
3. Step 3: Cross multiply
   112,401.92x = 155,065.92 × 67,664
4. Step 4: Simplify right side
   112,401.92x = 10,492,380,410.88
5. Step 5: Solve for x
   x = 10,492,380,410.88/112,401.92
6. Step 6: Final answer
   x = 93,346.99