Finding the Fourth Proportional to 10,289.30, 14,199.28 and 5,573.57

Step by Step Solution

1. Step 1: Write the proportion equation
   10,289.30 : 14,199.28 = 5,573.57 : x
2. Step 2: Convert to fraction form
   10,289.30/14,199.28 = 5,573.57/x
3. Step 3: Cross multiply
   10,289.30x = 14,199.28 × 5,573.57
4. Step 4: Simplify right side
   10,289.30x = 79,140,596.10
5. Step 5: Solve for x
   x = 79,140,596.10/10,289.30
6. Step 6: Final answer
   x = 7,691.55