Finding the Fourth Proportional to 50,079.72, 69,110.04 and 31,216.92

Step by Step Solution

1. Step 1: Write the proportion equation
   50,079.72 : 69,110.04 = 31,216.92 : x
2. Step 2: Convert to fraction form
   50,079.72/69,110.04 = 31,216.92/x
3. Step 3: Cross multiply
   50,079.72x = 69,110.04 × 31,216.92
4. Step 4: Simplify right side
   50,079.72x = 2,157,402,589.88
5. Step 5: Solve for x
   x = 2,157,402,589.88/50,079.72
6. Step 6: Final answer
   x = 43,079.37