Finding the Fourth Proportional to 12,256.47, 18,387.95 and 3,491.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,256.47 : 18,387.95 = 3,491.46 : x
2. Step 2: Convert to fraction form
   12,256.47/18,387.95 = 3,491.46/x
3. Step 3: Cross multiply
   12,256.47x = 18,387.95 × 3,491.46
4. Step 4: Simplify right side
   12,256.47x = 64,200,774.45
5. Step 5: Solve for x
   x = 64,200,774.45/12,256.47
6. Step 6: Final answer
   x = 5,238.11