Finding the Fourth Proportional to 10,830.72, 14,935.20 and 7,646.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,830.72 : 14,935.20 = 7,646.72 : x
2. Step 2: Convert to fraction form
   10,830.72/14,935.20 = 7,646.72/x
3. Step 3: Cross multiply
   10,830.72x = 14,935.20 × 7,646.72
4. Step 4: Simplify right side
   10,830.72x = 114,205,292.54
5. Step 5: Solve for x
   x = 114,205,292.54/10,830.72
6. Step 6: Final answer
   x = 10,544.57