Finding the Fourth Proportional to 9,856.89, 14,776.16 and 3,615.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,856.89 : 14,776.16 = 3,615.30 : x
2. Step 2: Convert to fraction form
   9,856.89/14,776.16 = 3,615.30/x
3. Step 3: Cross multiply
   9,856.89x = 14,776.16 × 3,615.30
4. Step 4: Simplify right side
   9,856.89x = 53,420,233.17
5. Step 5: Solve for x
   x = 53,420,233.17/9,856.89
6. Step 6: Final answer
   x = 5,419.58