Finding the Fourth Proportional to 10,787.17, 14,885.29 and 7,956.09

Step by Step Solution

1. Step 1: Write the proportion equation
   10,787.17 : 14,885.29 = 7,956.09 : x
2. Step 2: Convert to fraction form
   10,787.17/14,885.29 = 7,956.09/x
3. Step 3: Cross multiply
   10,787.17x = 14,885.29 × 7,956.09
4. Step 4: Simplify right side
   10,787.17x = 118,428,706.92
5. Step 5: Solve for x
   x = 118,428,706.92/10,787.17
6. Step 6: Final answer
   x = 10,978.66