Finding the Fourth Proportional to 123,792.50, 170,835.72 and 67,203.88

Step by Step Solution

1. Step 1: Write the proportion equation
   123,792.50 : 170,835.72 = 67,203.88 : x
2. Step 2: Convert to fraction form
   123,792.50/170,835.72 = 67,203.88/x
3. Step 3: Cross multiply
   123,792.50x = 170,835.72 × 67,203.88
4. Step 4: Simplify right side
   123,792.50x = 11,480,823,226.59
5. Step 5: Solve for x
   x = 11,480,823,226.59/123,792.50
6. Step 6: Final answer
   x = 92,742.48