Finding the Fourth Proportional to 9,895.23, 13,655.48 and 5,419.39

Step by Step Solution

1. Step 1: Write the proportion equation
   9,895.23 : 13,655.48 = 5,419.39 : x
2. Step 2: Convert to fraction form
   9,895.23/13,655.48 = 5,419.39/x
3. Step 3: Cross multiply
   9,895.23x = 13,655.48 × 5,419.39
4. Step 4: Simplify right side
   9,895.23x = 74,004,371.76
5. Step 5: Solve for x
   x = 74,004,371.76/9,895.23
6. Step 6: Final answer
   x = 7,478.79