Finding the Fourth Proportional to 11,783.58, 17,678.25 and 3,992.46

Step by Step Solution

1. Step 1: Write the proportion equation
   11,783.58 : 17,678.25 = 3,992.46 : x
2. Step 2: Convert to fraction form
   11,783.58/17,678.25 = 3,992.46/x
3. Step 3: Cross multiply
   11,783.58x = 17,678.25 × 3,992.46
4. Step 4: Simplify right side
   11,783.58x = 70,579,706.00
5. Step 5: Solve for x
   x = 70,579,706.00/11,783.58
6. Step 6: Final answer
   x = 5,989.67