Finding the Fourth Proportional to 112,788.72, 155,563.20 and 67,463.28

Step by Step Solution

1. Step 1: Write the proportion equation
   112,788.72 : 155,563.20 = 67,463.28 : x
2. Step 2: Convert to fraction form
   112,788.72/155,563.20 = 67,463.28/x
3. Step 3: Cross multiply
   112,788.72x = 155,563.20 × 67,463.28
4. Step 4: Simplify right side
   112,788.72x = 10,494,803,719.30
5. Step 5: Solve for x
   x = 10,494,803,719.30/112,788.72
6. Step 6: Final answer
   x = 93,048.34