Finding the Fourth Proportional to 88,509.68, 122,262.72 and 82,211.12

Step by Step Solution

1. Step 1: Write the proportion equation
   88,509.68 : 122,262.72 = 82,211.12 : x
2. Step 2: Convert to fraction form
   88,509.68/122,262.72 = 82,211.12/x
3. Step 3: Cross multiply
   88,509.68x = 122,262.72 × 82,211.12
4. Step 4: Simplify right side
   88,509.68x = 10,051,355,145.45
5. Step 5: Solve for x
   x = 10,051,355,145.45/88,509.68
6. Step 6: Final answer
   x = 113,562.21