Finding the Fourth Proportional to 72,432.53, 108,626.70 and 50,086.86

Step by Step Solution

1. Step 1: Write the proportion equation
   72,432.53 : 108,626.70 = 50,086.86 : x
2. Step 2: Convert to fraction form
   72,432.53/108,626.70 = 50,086.86/x
3. Step 3: Cross multiply
   72,432.53x = 108,626.70 × 50,086.86
4. Step 4: Simplify right side
   72,432.53x = 5,440,769,673.03
5. Step 5: Solve for x
   x = 5,440,769,673.03/72,432.53
6. Step 6: Final answer
   x = 75,115.00