Finding the Fourth Proportional to 50,819.86, 70,129.51 and 29,310.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,819.86 : 70,129.51 = 29,310.50 : x
2. Step 2: Convert to fraction form
   50,819.86/70,129.51 = 29,310.50/x
3. Step 3: Cross multiply
   50,819.86x = 70,129.51 × 29,310.50
4. Step 4: Simplify right side
   50,819.86x = 2,055,531,002.86
5. Step 5: Solve for x
   x = 2,055,531,002.86/50,819.86
6. Step 6: Final answer
   x = 40,447.40