Finding the Fourth Proportional to 11,656.79, 17,488.61 and 3,759.15

Step by Step Solution

1. Step 1: Write the proportion equation
   11,656.79 : 17,488.61 = 3,759.15 : x
2. Step 2: Convert to fraction form
   11,656.79/17,488.61 = 3,759.15/x
3. Step 3: Cross multiply
   11,656.79x = 17,488.61 × 3,759.15
4. Step 4: Simplify right side
   11,656.79x = 65,742,319.98
5. Step 5: Solve for x
   x = 65,742,319.98/11,656.79
6. Step 6: Final answer
   x = 5,639.83