Finding the Fourth Proportional to 10,303.56, 15,456.58 and 3,638.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,303.56 : 15,456.58 = 3,638.69 : x
2. Step 2: Convert to fraction form
   10,303.56/15,456.58 = 3,638.69/x
3. Step 3: Cross multiply
   10,303.56x = 15,456.58 × 3,638.69
4. Step 4: Simplify right side
   10,303.56x = 56,241,674.66
5. Step 5: Solve for x
   x = 56,241,674.66/10,303.56
6. Step 6: Final answer
   x = 5,458.47