Finding the Fourth Proportional to 12,256.48, 18,384.77 and 3,491.47

Step by Step Solution

1. Step 1: Write the proportion equation
   12,256.48 : 18,384.77 = 3,491.47 : x
2. Step 2: Convert to fraction form
   12,256.48/18,384.77 = 3,491.47/x
3. Step 3: Cross multiply
   12,256.48x = 18,384.77 × 3,491.47
4. Step 4: Simplify right side
   12,256.48x = 64,189,904.62
5. Step 5: Solve for x
   x = 64,189,904.62/12,256.48
6. Step 6: Final answer
   x = 5,237.22