Finding the Fourth Proportional to 82,061.81, 122,742.78 and 50,394.05

Step by Step Solution

1. Step 1: Write the proportion equation
   82,061.81 : 122,742.78 = 50,394.05 : x
2. Step 2: Convert to fraction form
   82,061.81/122,742.78 = 50,394.05/x
3. Step 3: Cross multiply
   82,061.81x = 122,742.78 × 50,394.05
4. Step 4: Simplify right side
   82,061.81x = 6,185,505,178.75
5. Step 5: Solve for x
   x = 6,185,505,178.75/82,061.81
6. Step 6: Final answer
   x = 75,376.18