Finding the Fourth Proportional to 10,659.72, 15,989.78 and 3,641.34

Step by Step Solution

1. Step 1: Write the proportion equation
   10,659.72 : 15,989.78 = 3,641.34 : x
2. Step 2: Convert to fraction form
   10,659.72/15,989.78 = 3,641.34/x
3. Step 3: Cross multiply
   10,659.72x = 15,989.78 × 3,641.34
4. Step 4: Simplify right side
   10,659.72x = 58,224,207.30
5. Step 5: Solve for x
   x = 58,224,207.30/10,659.72
6. Step 6: Final answer
   x = 5,462.08