Finding the Fourth Proportional to 10,584.55, 15,873.58 and 7,318.63

Step by Step Solution

1. Step 1: Write the proportion equation
   10,584.55 : 15,873.58 = 7,318.63 : x
2. Step 2: Convert to fraction form
   10,584.55/15,873.58 = 7,318.63/x
3. Step 3: Cross multiply
   10,584.55x = 15,873.58 × 7,318.63
4. Step 4: Simplify right side
   10,584.55x = 116,172,757.33
5. Step 5: Solve for x
   x = 116,172,757.33/10,584.55
6. Step 6: Final answer
   x = 10,975.70