Finding the Fourth Proportional to 10,680.84, 14,719.59 and 7,691.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,680.84 : 14,719.59 = 7,691.40 : x
2. Step 2: Convert to fraction form
   10,680.84/14,719.59 = 7,691.40/x
3. Step 3: Cross multiply
   10,680.84x = 14,719.59 × 7,691.40
4. Step 4: Simplify right side
   10,680.84x = 113,214,254.53
5. Step 5: Solve for x
   x = 113,214,254.53/10,680.84
6. Step 6: Final answer
   x = 10,599.75