Finding the Fourth Proportional to 10,310.10, 14,233.77 and 7,128.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,310.10 : 14,233.77 = 7,128.06 : x
2. Step 2: Convert to fraction form
   10,310.10/14,233.77 = 7,128.06/x
3. Step 3: Cross multiply
   10,310.10x = 14,233.77 × 7,128.06
4. Step 4: Simplify right side
   10,310.10x = 101,459,166.59
5. Step 5: Solve for x
   x = 101,459,166.59/10,310.10
6. Step 6: Final answer
   x = 9,840.75