Finding the Fourth Proportional to 82,009.50, 113,181.66 and 50,199.60

Step by Step Solution

1. Step 1: Write the proportion equation
   82,009.50 : 113,181.66 = 50,199.60 : x
2. Step 2: Convert to fraction form
   82,009.50/113,181.66 = 50,199.60/x
3. Step 3: Cross multiply
   82,009.50x = 113,181.66 × 50,199.60
4. Step 4: Simplify right side
   82,009.50x = 5,681,674,059.34
5. Step 5: Solve for x
   x = 5,681,674,059.34/82,009.50
6. Step 6: Final answer
   x = 69,280.68