Finding the Fourth Proportional to 9,895.30, 13,655.52 and 5,419.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,895.30 : 13,655.52 = 5,419.34 : x
2. Step 2: Convert to fraction form
   9,895.30/13,655.52 = 5,419.34/x
3. Step 3: Cross multiply
   9,895.30x = 13,655.52 × 5,419.34
4. Step 4: Simplify right side
   9,895.30x = 74,003,905.76
5. Step 5: Solve for x
   x = 74,003,905.76/9,895.30
6. Step 6: Final answer
   x = 7,478.69