Finding the Fourth Proportional to 14,140.71, 19,513.31 and 7,766.06

Step by Step Solution

1. Step 1: Write the proportion equation
   14,140.71 : 19,513.31 = 7,766.06 : x
2. Step 2: Convert to fraction form
   14,140.71/19,513.31 = 7,766.06/x
3. Step 3: Cross multiply
   14,140.71x = 19,513.31 × 7,766.06
4. Step 4: Simplify right side
   14,140.71x = 151,541,476.45
5. Step 5: Solve for x
   x = 151,541,476.45/14,140.71
6. Step 6: Final answer
   x = 10,716.68