Finding the Fourth Proportional to 58,213.50, 80,334.63 and 31,717.50

Step by Step Solution

1. Step 1: Write the proportion equation
   58,213.50 : 80,334.63 = 31,717.50 : x
2. Step 2: Convert to fraction form
   58,213.50/80,334.63 = 31,717.50/x
3. Step 3: Cross multiply
   58,213.50x = 80,334.63 × 31,717.50
4. Step 4: Simplify right side
   58,213.50x = 2,548,013,627.03
5. Step 5: Solve for x
   x = 2,548,013,627.03/58,213.50
6. Step 6: Final answer
   x = 43,770.15