Finding the Fourth Proportional to 9,857.42, 14,777.33 and 3,615.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,857.42 : 14,777.33 = 3,615.98 : x
2. Step 2: Convert to fraction form
   9,857.42/14,777.33 = 3,615.98/x
3. Step 3: Cross multiply
   9,857.42x = 14,777.33 × 3,615.98
4. Step 4: Simplify right side
   9,857.42x = 53,434,455.85
5. Step 5: Solve for x
   x = 53,434,455.85/9,857.42
6. Step 6: Final answer
   x = 5,420.74