Finding the Fourth Proportional to 10,787.92, 14,886.31 and 7,956.84

Step by Step Solution

1. Step 1: Write the proportion equation
   10,787.92 : 14,886.31 = 7,956.84 : x
2. Step 2: Convert to fraction form
   10,787.92/14,886.31 = 7,956.84/x
3. Step 3: Cross multiply
   10,787.92x = 14,886.31 × 7,956.84
4. Step 4: Simplify right side
   10,787.92x = 118,447,986.86
5. Step 5: Solve for x
   x = 118,447,986.86/10,787.92
6. Step 6: Final answer
   x = 10,979.69