Finding the Fourth Proportional to 9,645.84, 13,311.05 and 5,454.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,645.84 : 13,311.05 = 5,454.09 : x
2. Step 2: Convert to fraction form
   9,645.84/13,311.05 = 5,454.09/x
3. Step 3: Cross multiply
   9,645.84x = 13,311.05 × 5,454.09
4. Step 4: Simplify right side
   9,645.84x = 72,599,637.42
5. Step 5: Solve for x
   x = 72,599,637.42/9,645.84
6. Step 6: Final answer
   x = 7,526.52