Finding the Fourth Proportional to 123,926.28, 185,639.94 and 57,274.62

Step by Step Solution

1. Step 1: Write the proportion equation
   123,926.28 : 185,639.94 = 57,274.62 : x
2. Step 2: Convert to fraction form
   123,926.28/185,639.94 = 57,274.62/x
3. Step 3: Cross multiply
   123,926.28x = 185,639.94 × 57,274.62
4. Step 4: Simplify right side
   123,926.28x = 10,632,457,020.32
5. Step 5: Solve for x
   x = 10,632,457,020.32/123,926.28
6. Step 6: Final answer
   x = 85,796.63