Finding the Fourth Proportional to 9,018.64, 13,530.01 and 3,398.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,018.64 : 13,530.01 = 3,398.05 : x
2. Step 2: Convert to fraction form
   9,018.64/13,530.01 = 3,398.05/x
3. Step 3: Cross multiply
   9,018.64x = 13,530.01 × 3,398.05
4. Step 4: Simplify right side
   9,018.64x = 45,975,674.83
5. Step 5: Solve for x
   x = 45,975,674.83/9,018.64
6. Step 6: Final answer
   x = 5,097.85