Finding the Fourth Proportional to 5,388.06, 7,433.06 and 3,893.61

Step by Step Solution

1. Step 1: Write the proportion equation
   5,388.06 : 7,433.06 = 3,893.61 : x
2. Step 2: Convert to fraction form
   5,388.06/7,433.06 = 3,893.61/x
3. Step 3: Cross multiply
   5,388.06x = 7,433.06 × 3,893.61
4. Step 4: Simplify right side
   5,388.06x = 28,941,409.32
5. Step 5: Solve for x
   x = 28,941,409.32/5,388.06
6. Step 6: Final answer
   x = 5,371.40