Finding the Fourth Proportional to 10,406.58, 15,608.43 and 3,387.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,406.58 : 15,608.43 = 3,387.30 : x
2. Step 2: Convert to fraction form
   10,406.58/15,608.43 = 3,387.30/x
3. Step 3: Cross multiply
   10,406.58x = 15,608.43 × 3,387.30
4. Step 4: Simplify right side
   10,406.58x = 52,870,434.94
5. Step 5: Solve for x
   x = 52,870,434.94/10,406.58
6. Step 6: Final answer
   x = 5,080.48