Finding the Fourth Proportional to 8,685.04, 13,026.79 and 2,359.68

Step by Step Solution

1. Step 1: Write the proportion equation
   8,685.04 : 13,026.79 = 2,359.68 : x
2. Step 2: Convert to fraction form
   8,685.04/13,026.79 = 2,359.68/x
3. Step 3: Cross multiply
   8,685.04x = 13,026.79 × 2,359.68
4. Step 4: Simplify right side
   8,685.04x = 30,739,055.83
5. Step 5: Solve for x
   x = 30,739,055.83/8,685.04
6. Step 6: Final answer
   x = 3,539.31