Finding the Fourth Proportional to 9,642.59, 13,305.69 and 5,450.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,642.59 : 13,305.69 = 5,450.84 : x
2. Step 2: Convert to fraction form
   9,642.59/13,305.69 = 5,450.84/x
3. Step 3: Cross multiply
   9,642.59x = 13,305.69 × 5,450.84
4. Step 4: Simplify right side
   9,642.59x = 72,527,187.28
5. Step 5: Solve for x
   x = 72,527,187.28/9,642.59
6. Step 6: Final answer
   x = 7,521.55