Finding the Fourth Proportional to 10,503.07, 15,759.24 and 5,571.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,503.07 : 15,759.24 = 5,571.50 : x
2. Step 2: Convert to fraction form
   10,503.07/15,759.24 = 5,571.50/x
3. Step 3: Cross multiply
   10,503.07x = 15,759.24 × 5,571.50
4. Step 4: Simplify right side
   10,503.07x = 87,802,538.40
5. Step 5: Solve for x
   x = 87,802,538.40/10,503.07
6. Step 6: Final answer
   x = 8,359.70