Finding the Fourth Proportional to 10,665.90, 14,701.26 and 7,127.82

Step by Step Solution

1. Step 1: Write the proportion equation
   10,665.90 : 14,701.26 = 7,127.82 : x
2. Step 2: Convert to fraction form
   10,665.90/14,701.26 = 7,127.82/x
3. Step 3: Cross multiply
   10,665.90x = 14,701.26 × 7,127.82
4. Step 4: Simplify right side
   10,665.90x = 104,787,935.05
5. Step 5: Solve for x
   x = 104,787,935.05/10,665.90
6. Step 6: Final answer
   x = 9,824.58