Finding the Fourth Proportional to 13,019.50, 19,517.28 and 4,697.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,019.50 : 19,517.28 = 4,697.56 : x
2. Step 2: Convert to fraction form
   13,019.50/19,517.28 = 4,697.56/x
3. Step 3: Cross multiply
   13,019.50x = 19,517.28 × 4,697.56
4. Step 4: Simplify right side
   13,019.50x = 91,683,593.84
5. Step 5: Solve for x
   x = 91,683,593.84/13,019.50
6. Step 6: Final answer
   x = 7,042.02