Finding the Fourth Proportional to 85,443.83, 117,056.10 and 82,249.28

Step by Step Solution

1. Step 1: Write the proportion equation
   85,443.83 : 117,056.10 = 82,249.28 : x
2. Step 2: Convert to fraction form
   85,443.83/117,056.10 = 82,249.28/x
3. Step 3: Cross multiply
   85,443.83x = 117,056.10 × 82,249.28
4. Step 4: Simplify right side
   85,443.83x = 9,627,779,944.61
5. Step 5: Solve for x
   x = 9,627,779,944.61/85,443.83
6. Step 6: Final answer
   x = 112,679.64