Finding the Fourth Proportional to 11,992.32, 17,977.59 and 4,196.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,992.32 : 17,977.59 = 4,196.88 : x
2. Step 2: Convert to fraction form
   11,992.32/17,977.59 = 4,196.88/x
3. Step 3: Cross multiply
   11,992.32x = 17,977.59 × 4,196.88
4. Step 4: Simplify right side
   11,992.32x = 75,449,787.92
5. Step 5: Solve for x
   x = 75,449,787.92/11,992.32
6. Step 6: Final answer
   x = 6,291.51