Finding the Fourth Proportional to 11,920.53, 17,881.61 and 3,599.94

Step by Step Solution

1. Step 1: Write the proportion equation
   11,920.53 : 17,881.61 = 3,599.94 : x
2. Step 2: Convert to fraction form
   11,920.53/17,881.61 = 3,599.94/x
3. Step 3: Cross multiply
   11,920.53x = 17,881.61 × 3,599.94
4. Step 4: Simplify right side
   11,920.53x = 64,372,723.10
5. Step 5: Solve for x
   x = 64,372,723.10/11,920.53
6. Step 6: Final answer
   x = 5,400.16