Finding the Fourth Proportional to 82,611, 113,951.16 and 65,883.96

Step by Step Solution

1. Step 1: Write the proportion equation
   82,611 : 113,951.16 = 65,883.96 : x
2. Step 2: Convert to fraction form
   82,611/113,951.16 = 65,883.96/x
3. Step 3: Cross multiply
   82,611x = 113,951.16 × 65,883.96
4. Step 4: Simplify right side
   82,611x = 7,507,553,667.39
5. Step 5: Solve for x
   x = 7,507,553,667.39/82,611
6. Step 6: Final answer
   x = 90,878.38