Finding the Fourth Proportional to 9,194.33, 12,690.78 and 5,419.69

Step by Step Solution

1. Step 1: Write the proportion equation
   9,194.33 : 12,690.78 = 5,419.69 : x
2. Step 2: Convert to fraction form
   9,194.33/12,690.78 = 5,419.69/x
3. Step 3: Cross multiply
   9,194.33x = 12,690.78 × 5,419.69
4. Step 4: Simplify right side
   9,194.33x = 68,780,030.00
5. Step 5: Solve for x
   x = 68,780,030.00/9,194.33
6. Step 6: Final answer
   x = 7,480.70