Finding the Fourth Proportional to 12,302.76, 18,456.86 and 3,537

Step by Step Solution

1. Step 1: Write the proportion equation
   12,302.76 : 18,456.86 = 3,537 : x
2. Step 2: Convert to fraction form
   12,302.76/18,456.86 = 3,537/x
3. Step 3: Cross multiply
   12,302.76x = 18,456.86 × 3,537
4. Step 4: Simplify right side
   12,302.76x = 65,281,913.82
5. Step 5: Solve for x
   x = 65,281,913.82/12,302.76
6. Step 6: Final answer
   x = 5,306.28