Finding the Fourth Proportional to 9,942.72, 14,913.99 and 4,732.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,942.72 : 14,913.99 = 4,732.80 : x
2. Step 2: Convert to fraction form
   9,942.72/14,913.99 = 4,732.80/x
3. Step 3: Cross multiply
   9,942.72x = 14,913.99 × 4,732.80
4. Step 4: Simplify right side
   9,942.72x = 70,584,931.87
5. Step 5: Solve for x
   x = 70,584,931.87/9,942.72
6. Step 6: Final answer
   x = 7,099.16