Finding the Fourth Proportional to 49,245.86, 67,919.15 and 31,310.03

Step by Step Solution

1. Step 1: Write the proportion equation
   49,245.86 : 67,919.15 = 31,310.03 : x
2. Step 2: Convert to fraction form
   49,245.86/67,919.15 = 31,310.03/x
3. Step 3: Cross multiply
   49,245.86x = 67,919.15 × 31,310.03
4. Step 4: Simplify right side
   49,245.86x = 2,126,550,127.93
5. Step 5: Solve for x
   x = 2,126,550,127.93/49,245.86
6. Step 6: Final answer
   x = 43,182.32