Finding the Fourth Proportional to 9,787.63, 14,681.42 and 4,860.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,787.63 : 14,681.42 = 4,860.72 : x
2. Step 2: Convert to fraction form
   9,787.63/14,681.42 = 4,860.72/x
3. Step 3: Cross multiply
   9,787.63x = 14,681.42 × 4,860.72
4. Step 4: Simplify right side
   9,787.63x = 71,362,198.42
5. Step 5: Solve for x
   x = 71,362,198.42/9,787.63
6. Step 6: Final answer
   x = 7,291.06