Finding the Fourth Proportional to 11,783.08, 17,676.78 and 3,886.06

Step by Step Solution

1. Step 1: Write the proportion equation
   11,783.08 : 17,676.78 = 3,886.06 : x
2. Step 2: Convert to fraction form
   11,783.08/17,676.78 = 3,886.06/x
3. Step 3: Cross multiply
   11,783.08x = 17,676.78 × 3,886.06
4. Step 4: Simplify right side
   11,783.08x = 68,693,027.69
5. Step 5: Solve for x
   x = 68,693,027.69/11,783.08
6. Step 6: Final answer
   x = 5,829.80