Finding the Fourth Proportional to 11,941.60, 17,913.12 and 3,621.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,941.60 : 17,913.12 = 3,621.69 : x
2. Step 2: Convert to fraction form
   11,941.60/17,913.12 = 3,621.69/x
3. Step 3: Cross multiply
   11,941.60x = 17,913.12 × 3,621.69
4. Step 4: Simplify right side
   11,941.60x = 64,875,734.17
5. Step 5: Solve for x
   x = 64,875,734.17/11,941.60
6. Step 6: Final answer
   x = 5,432.75