Finding the Fourth Proportional to 208,123.56, 312,185.88 and 50,351.76

Step by Step Solution

1. Step 1: Write the proportion equation
   208,123.56 : 312,185.88 = 50,351.76 : x
2. Step 2: Convert to fraction form
   208,123.56/312,185.88 = 50,351.76/x
3. Step 3: Cross multiply
   208,123.56x = 312,185.88 × 50,351.76
4. Step 4: Simplify right side
   208,123.56x = 15,719,108,505.15
5. Step 5: Solve for x
   x = 15,719,108,505.15/208,123.56
6. Step 6: Final answer
   x = 75,527.77