Finding the Fourth Proportional to 9,412.18, 14,120.16 and 3,171.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,412.18 : 14,120.16 = 3,171.94 : x
2. Step 2: Convert to fraction form
   9,412.18/14,120.16 = 3,171.94/x
3. Step 3: Cross multiply
   9,412.18x = 14,120.16 × 3,171.94
4. Step 4: Simplify right side
   9,412.18x = 44,788,300.31
5. Step 5: Solve for x
   x = 44,788,300.31/9,412.18
6. Step 6: Final answer
   x = 4,758.55