Finding the Fourth Proportional to 9,439.10, 14,160.35 and 3,889.41

Step by Step Solution

1. Step 1: Write the proportion equation
   9,439.10 : 14,160.35 = 3,889.41 : x
2. Step 2: Convert to fraction form
   9,439.10/14,160.35 = 3,889.41/x
3. Step 3: Cross multiply
   9,439.10x = 14,160.35 × 3,889.41
4. Step 4: Simplify right side
   9,439.10x = 55,075,406.89
5. Step 5: Solve for x
   x = 55,075,406.89/9,439.10
6. Step 6: Final answer
   x = 5,834.82