Finding the Fourth Proportional to 46,080.56, 69,120.72 and 18,398

Step by Step Solution

1. Step 1: Write the proportion equation
   46,080.56 : 69,120.72 = 18,398 : x
2. Step 2: Convert to fraction form
   46,080.56/69,120.72 = 18,398/x
3. Step 3: Cross multiply
   46,080.56x = 69,120.72 × 18,398
4. Step 4: Simplify right side
   46,080.56x = 1,271,683,006.56
5. Step 5: Solve for x
   x = 1,271,683,006.56/46,080.56
6. Step 6: Final answer
   x = 27,596.95