Finding the Fourth Proportional to 12,495.50, 18,744.34 and 3,261.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,495.50 : 18,744.34 = 3,261.50 : x
2. Step 2: Convert to fraction form
   12,495.50/18,744.34 = 3,261.50/x
3. Step 3: Cross multiply
   12,495.50x = 18,744.34 × 3,261.50
4. Step 4: Simplify right side
   12,495.50x = 61,134,664.91
5. Step 5: Solve for x
   x = 61,134,664.91/12,495.50
6. Step 6: Final answer
   x = 4,892.53