Finding the Fourth Proportional to 8,698.43, 12,004.42 and 4,921.59

Step by Step Solution

1. Step 1: Write the proportion equation
   8,698.43 : 12,004.42 = 4,921.59 : x
2. Step 2: Convert to fraction form
   8,698.43/12,004.42 = 4,921.59/x
3. Step 3: Cross multiply
   8,698.43x = 12,004.42 × 4,921.59
4. Step 4: Simplify right side
   8,698.43x = 59,080,833.43
5. Step 5: Solve for x
   x = 59,080,833.43/8,698.43
6. Step 6: Final answer
   x = 6,792.13