Finding the Fourth Proportional to 12,552.91, 18,824.94 and 3,665.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,552.91 : 18,824.94 = 3,665.86 : x
2. Step 2: Convert to fraction form
   12,552.91/18,824.94 = 3,665.86/x
3. Step 3: Cross multiply
   12,552.91x = 18,824.94 × 3,665.86
4. Step 4: Simplify right side
   12,552.91x = 69,009,547.49
5. Step 5: Solve for x
   x = 69,009,547.49/12,552.91
6. Step 6: Final answer
   x = 5,497.50