Finding the Fourth Proportional to 10,290.48, 14,200.84 and 5,574.80

Step by Step Solution

1. Step 1: Write the proportion equation
   10,290.48 : 14,200.84 = 5,574.80 : x
2. Step 2: Convert to fraction form
   10,290.48/14,200.84 = 5,574.80/x
3. Step 3: Cross multiply
   10,290.48x = 14,200.84 × 5,574.80
4. Step 4: Simplify right side
   10,290.48x = 79,166,842.83
5. Step 5: Solve for x
   x = 79,166,842.83/10,290.48
6. Step 6: Final answer
   x = 7,693.21