Finding the Fourth Proportional to 82,699.42, 114,136.10 and 80,447.72

Step by Step Solution

1. Step 1: Write the proportion equation
   82,699.42 : 114,136.10 = 80,447.72 : x
2. Step 2: Convert to fraction form
   82,699.42/114,136.10 = 80,447.72/x
3. Step 3: Cross multiply
   82,699.42x = 114,136.10 × 80,447.72
4. Step 4: Simplify right side
   82,699.42x = 9,181,989,014.69
5. Step 5: Solve for x
   x = 9,181,989,014.69/82,699.42
6. Step 6: Final answer
   x = 111,028.46