Finding the Fourth Proportional to 9,653.81, 13,322.13 and 5,404.79

Step by Step Solution

1. Step 1: Write the proportion equation
   9,653.81 : 13,322.13 = 5,404.79 : x
2. Step 2: Convert to fraction form
   9,653.81/13,322.13 = 5,404.79/x
3. Step 3: Cross multiply
   9,653.81x = 13,322.13 × 5,404.79
4. Step 4: Simplify right side
   9,653.81x = 72,003,248.39
5. Step 5: Solve for x
   x = 72,003,248.39/9,653.81
6. Step 6: Final answer
   x = 7,458.54