Finding the Fourth Proportional to 9,810.57, 14,718.69 and 2,885.07

Step by Step Solution

1. Step 1: Write the proportion equation
   9,810.57 : 14,718.69 = 2,885.07 : x
2. Step 2: Convert to fraction form
   9,810.57/14,718.69 = 2,885.07/x
3. Step 3: Cross multiply
   9,810.57x = 14,718.69 × 2,885.07
4. Step 4: Simplify right side
   9,810.57x = 42,464,450.96
5. Step 5: Solve for x
   x = 42,464,450.96/9,810.57
6. Step 6: Final answer
   x = 4,328.44