Finding the Fourth Proportional to 9,764.74, 14,645.89 and 3,919.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,764.74 : 14,645.89 = 3,919.38 : x
2. Step 2: Convert to fraction form
   9,764.74/14,645.89 = 3,919.38/x
3. Step 3: Cross multiply
   9,764.74x = 14,645.89 × 3,919.38
4. Step 4: Simplify right side
   9,764.74x = 57,402,808.35
5. Step 5: Solve for x
   x = 57,402,808.35/9,764.74
6. Step 6: Final answer
   x = 5,878.58