Finding the Fourth Proportional to 9,615.72, 14,417.76 and 4,680.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,615.72 : 14,417.76 = 4,680.42 : x
2. Step 2: Convert to fraction form
   9,615.72/14,417.76 = 4,680.42/x
3. Step 3: Cross multiply
   9,615.72x = 14,417.76 × 4,680.42
4. Step 4: Simplify right side
   9,615.72x = 67,481,172.26
5. Step 5: Solve for x
   x = 67,481,172.26/9,615.72
6. Step 6: Final answer
   x = 7,017.80