Finding the Fourth Proportional to 9,787.56, 14,679.72 and 2,862.06

Step by Step Solution

1. Step 1: Write the proportion equation
   9,787.56 : 14,679.72 = 2,862.06 : x
2. Step 2: Convert to fraction form
   9,787.56/14,679.72 = 2,862.06/x
3. Step 3: Cross multiply
   9,787.56x = 14,679.72 × 2,862.06
4. Step 4: Simplify right side
   9,787.56x = 42,014,239.42
5. Step 5: Solve for x
   x = 42,014,239.42/9,787.56
6. Step 6: Final answer
   x = 4,292.62