Finding the Fourth Proportional to 11,579.12, 17,364.72 and 3,786

Step by Step Solution

1. Step 1: Write the proportion equation
   11,579.12 : 17,364.72 = 3,786 : x
2. Step 2: Convert to fraction form
   11,579.12/17,364.72 = 3,786/x
3. Step 3: Cross multiply
   11,579.12x = 17,364.72 × 3,786
4. Step 4: Simplify right side
   11,579.12x = 65,742,829.92
5. Step 5: Solve for x
   x = 65,742,829.92/11,579.12
6. Step 6: Final answer
   x = 5,677.71