Finding the Fourth Proportional to 10,273.89, 15,407.19 and 3,698.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,273.89 : 15,407.19 = 3,698.31 : x
2. Step 2: Convert to fraction form
   10,273.89/15,407.19 = 3,698.31/x
3. Step 3: Cross multiply
   10,273.89x = 15,407.19 × 3,698.31
4. Step 4: Simplify right side
   10,273.89x = 56,980,564.85
5. Step 5: Solve for x
   x = 56,980,564.85/10,273.89
6. Step 6: Final answer
   x = 5,546.15