Finding the Fourth Proportional to 5,388.21, 7,435.82 and 2,998.37

Step by Step Solution

1. Step 1: Write the proportion equation
   5,388.21 : 7,435.82 = 2,998.37 : x
2. Step 2: Convert to fraction form
   5,388.21/7,435.82 = 2,998.37/x
3. Step 3: Cross multiply
   5,388.21x = 7,435.82 × 2,998.37
4. Step 4: Simplify right side
   5,388.21x = 22,295,339.61
5. Step 5: Solve for x
   x = 22,295,339.61/5,388.21
6. Step 6: Final answer
   x = 4,137.80