Finding the Fourth Proportional to 267,685.83, 401,588.15 and 80,683.83

Step by Step Solution

1. Step 1: Write the proportion equation
   267,685.83 : 401,588.15 = 80,683.83 : x
2. Step 2: Convert to fraction form
   267,685.83/401,588.15 = 80,683.83/x
3. Step 3: Cross multiply
   267,685.83x = 401,588.15 × 80,683.83
4. Step 4: Simplify right side
   267,685.83x = 32,401,669,621.20
5. Step 5: Solve for x
   x = 32,401,669,621.20/267,685.83
6. Step 6: Final answer
   x = 121,043.65