Finding the Fourth Proportional to 71,730.45, 107,470.98 and 50,337.79

Step by Step Solution

1. Step 1: Write the proportion equation
   71,730.45 : 107,470.98 = 50,337.79 : x
2. Step 2: Convert to fraction form
   71,730.45/107,470.98 = 50,337.79/x
3. Step 3: Cross multiply
   71,730.45x = 107,470.98 × 50,337.79
4. Step 4: Simplify right side
   71,730.45x = 5,409,851,164.89
5. Step 5: Solve for x
   x = 5,409,851,164.89/71,730.45
6. Step 6: Final answer
   x = 75,419.18