Finding the Fourth Proportional to 86,485.50, 129,717.50 and 23,310.56

Step by Step Solution

1. Step 1: Write the proportion equation
   86,485.50 : 129,717.50 = 23,310.56 : x
2. Step 2: Convert to fraction form
   86,485.50/129,717.50 = 23,310.56/x
3. Step 3: Cross multiply
   86,485.50x = 129,717.50 × 23,310.56
4. Step 4: Simplify right side
   86,485.50x = 3,023,787,450.25
5. Step 5: Solve for x
   x = 3,023,787,450.25/86,485.50
6. Step 6: Final answer
   x = 34,962.94