Finding the Fourth Proportional to 85,379.82, 117,928.78 and 63,965.34

Step by Step Solution

1. Step 1: Write the proportion equation
   85,379.82 : 117,928.78 = 63,965.34 : x
2. Step 2: Convert to fraction form
   85,379.82/117,928.78 = 63,965.34/x
3. Step 3: Cross multiply
   85,379.82x = 117,928.78 × 63,965.34
4. Step 4: Simplify right side
   85,379.82x = 7,543,353,906.34
5. Step 5: Solve for x
   x = 7,543,353,906.34/85,379.82
6. Step 6: Final answer
   x = 88,350.54