Finding the Fourth Proportional to 11,920.43, 17,885.69 and 5,994.20

Step by Step Solution

1. Step 1: Write the proportion equation
   11,920.43 : 17,885.69 = 5,994.20 : x
2. Step 2: Convert to fraction form
   11,920.43/17,885.69 = 5,994.20/x
3. Step 3: Cross multiply
   11,920.43x = 17,885.69 × 5,994.20
4. Step 4: Simplify right side
   11,920.43x = 107,210,473.94
5. Step 5: Solve for x
   x = 107,210,473.94/11,920.43
6. Step 6: Final answer
   x = 8,993.84