Finding the Fourth Proportional to 5,389.50, 7,435.06 and 3,895.05

Step by Step Solution

1. Step 1: Write the proportion equation
   5,389.50 : 7,435.06 = 3,895.05 : x
2. Step 2: Convert to fraction form
   5,389.50/7,435.06 = 3,895.05/x
3. Step 3: Cross multiply
   5,389.50x = 7,435.06 × 3,895.05
4. Step 4: Simplify right side
   5,389.50x = 28,959,930.45
5. Step 5: Solve for x
   x = 28,959,930.45/5,389.50
6. Step 6: Final answer
   x = 5,373.40