Finding the Fourth Proportional to 10,609.59, 15,913.89 and 4,368.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,609.59 : 15,913.89 = 4,368.05 : x
2. Step 2: Convert to fraction form
   10,609.59/15,913.89 = 4,368.05/x
3. Step 3: Cross multiply
   10,609.59x = 15,913.89 × 4,368.05
4. Step 4: Simplify right side
   10,609.59x = 69,512,587.65
5. Step 5: Solve for x
   x = 69,512,587.65/10,609.59
6. Step 6: Final answer
   x = 6,551.86