Finding the Fourth Proportional to 9,828.15, 14,731.69 and 4,887.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,828.15 : 14,731.69 = 4,887.15 : x
2. Step 2: Convert to fraction form
   9,828.15/14,731.69 = 4,887.15/x
3. Step 3: Cross multiply
   9,828.15x = 14,731.69 × 4,887.15
4. Step 4: Simplify right side
   9,828.15x = 71,995,978.78
5. Step 5: Solve for x
   x = 71,995,978.78/9,828.15
6. Step 6: Final answer
   x = 7,325.49