Finding the Fourth Proportional to 10,681.21, 14,719.25 and 7,691.39

Step by Step Solution

1. Step 1: Write the proportion equation
   10,681.21 : 14,719.25 = 7,691.39 : x
2. Step 2: Convert to fraction form
   10,681.21/14,719.25 = 7,691.39/x
3. Step 3: Cross multiply
   10,681.21x = 14,719.25 × 7,691.39
4. Step 4: Simplify right side
   10,681.21x = 113,211,509.83
5. Step 5: Solve for x
   x = 113,211,509.83/10,681.21
6. Step 6: Final answer
   x = 10,599.13