Finding the Fourth Proportional to 58,219.50, 80,342.91 and 31,723.50

Step by Step Solution

1. Step 1: Write the proportion equation
   58,219.50 : 80,342.91 = 31,723.50 : x
2. Step 2: Convert to fraction form
   58,219.50/80,342.91 = 31,723.50/x
3. Step 3: Cross multiply
   58,219.50x = 80,342.91 × 31,723.50
4. Step 4: Simplify right side
   58,219.50x = 2,548,758,305.39
5. Step 5: Solve for x
   x = 2,548,758,305.39/58,219.50
6. Step 6: Final answer
   x = 43,778.43