Finding the Fourth Proportional to 9,446.31, 14,171.90 and 3,900.51

Step by Step Solution

1. Step 1: Write the proportion equation
   9,446.31 : 14,171.90 = 3,900.51 : x
2. Step 2: Convert to fraction form
   9,446.31/14,171.90 = 3,900.51/x
3. Step 3: Cross multiply
   9,446.31x = 14,171.90 × 3,900.51
4. Step 4: Simplify right side
   9,446.31x = 55,277,618.17
5. Step 5: Solve for x
   x = 55,277,618.17/9,446.31
6. Step 6: Final answer
   x = 5,851.77