Finding the Fourth Proportional to 7,019.68, 9,690.72 and 4,897.12

Step by Step Solution

1. Step 1: Write the proportion equation
   7,019.68 : 9,690.72 = 4,897.12 : x
2. Step 2: Convert to fraction form
   7,019.68/9,690.72 = 4,897.12/x
3. Step 3: Cross multiply
   7,019.68x = 9,690.72 × 4,897.12
4. Step 4: Simplify right side
   7,019.68x = 47,456,618.73
5. Step 5: Solve for x
   x = 47,456,618.73/7,019.68
6. Step 6: Final answer
   x = 6,760.51