Finding the Fourth Proportional to 7,113.39, 10,670.28 and 1,919.25

Step by Step Solution

1. Step 1: Write the proportion equation
   7,113.39 : 10,670.28 = 1,919.25 : x
2. Step 2: Convert to fraction form
   7,113.39/10,670.28 = 1,919.25/x
3. Step 3: Cross multiply
   7,113.39x = 10,670.28 × 1,919.25
4. Step 4: Simplify right side
   7,113.39x = 20,478,934.89
5. Step 5: Solve for x
   x = 20,478,934.89/7,113.39
6. Step 6: Final answer
   x = 2,878.93