Finding the Fourth Proportional to 10,570.53, 15,858.14 and 3,550.80

Step by Step Solution

1. Step 1: Write the proportion equation
   10,570.53 : 15,858.14 = 3,550.80 : x
2. Step 2: Convert to fraction form
   10,570.53/15,858.14 = 3,550.80/x
3. Step 3: Cross multiply
   10,570.53x = 15,858.14 × 3,550.80
4. Step 4: Simplify right side
   10,570.53x = 56,309,065.76
5. Step 5: Solve for x
   x = 56,309,065.76/10,570.53
6. Step 6: Final answer
   x = 5,326.99