Finding the Fourth Proportional to 10,720.37, 16,076.61 and 3,698.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,720.37 : 16,076.61 = 3,698.60 : x
2. Step 2: Convert to fraction form
   10,720.37/16,076.61 = 3,698.60/x
3. Step 3: Cross multiply
   10,720.37x = 16,076.61 × 3,698.60
4. Step 4: Simplify right side
   10,720.37x = 59,460,869.36
5. Step 5: Solve for x
   x = 59,460,869.36/10,720.37
6. Step 6: Final answer
   x = 5,546.53