Finding the Fourth Proportional to 13,019.56, 19,530.54 and 4,698.28

Step by Step Solution

1. Step 1: Write the proportion equation
   13,019.56 : 19,530.54 = 4,698.28 : x
2. Step 2: Convert to fraction form
   13,019.56/19,530.54 = 4,698.28/x
3. Step 3: Cross multiply
   13,019.56x = 19,530.54 × 4,698.28
4. Step 4: Simplify right side
   13,019.56x = 91,759,945.47
5. Step 5: Solve for x
   x = 91,759,945.47/13,019.56
6. Step 6: Final answer
   x = 7,047.85