Finding the Fourth Proportional to 9,855.53, 14,789.64 and 3,931.41

Step by Step Solution

1. Step 1: Write the proportion equation
   9,855.53 : 14,789.64 = 3,931.41 : x
2. Step 2: Convert to fraction form
   9,855.53/14,789.64 = 3,931.41/x
3. Step 3: Cross multiply
   9,855.53x = 14,789.64 × 3,931.41
4. Step 4: Simplify right side
   9,855.53x = 58,144,082.69
5. Step 5: Solve for x
   x = 58,144,082.69/9,855.53
6. Step 6: Final answer
   x = 5,899.64