Finding the Fourth Proportional to 10,560.37, 15,834.15 and 5,289.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,560.37 : 15,834.15 = 5,289.25 : x
2. Step 2: Convert to fraction form
   10,560.37/15,834.15 = 5,289.25/x
3. Step 3: Cross multiply
   10,560.37x = 15,834.15 × 5,289.25
4. Step 4: Simplify right side
   10,560.37x = 83,750,777.89
5. Step 5: Solve for x
   x = 83,750,777.89/10,560.37
6. Step 6: Final answer
   x = 7,930.67