Finding the Fourth Proportional to 9,639.76, 13,300.68 and 5,446.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,639.76 : 13,300.68 = 5,446.48 : x
2. Step 2: Convert to fraction form
   9,639.76/13,300.68 = 5,446.48/x
3. Step 3: Cross multiply
   9,639.76x = 13,300.68 × 5,446.48
4. Step 4: Simplify right side
   9,639.76x = 72,441,887.61
5. Step 5: Solve for x
   x = 72,441,887.61/9,639.76
6. Step 6: Final answer
   x = 7,514.91