Finding the Fourth Proportional to 11,922.34, 17,880.55 and 3,601.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,922.34 : 17,880.55 = 3,601.72 : x
2. Step 2: Convert to fraction form
   11,922.34/17,880.55 = 3,601.72/x
3. Step 3: Cross multiply
   11,922.34x = 17,880.55 × 3,601.72
4. Step 4: Simplify right side
   11,922.34x = 64,400,647.31
5. Step 5: Solve for x
   x = 64,400,647.31/11,922.34
6. Step 6: Final answer
   x = 5,401.68