Finding the Fourth Proportional to 10,290.58, 14,200.98 and 5,574.87

Step by Step Solution

1. Step 1: Write the proportion equation
   10,290.58 : 14,200.98 = 5,574.87 : x
2. Step 2: Convert to fraction form
   10,290.58/14,200.98 = 5,574.87/x
3. Step 3: Cross multiply
   10,290.58x = 14,200.98 × 5,574.87
4. Step 4: Simplify right side
   10,290.58x = 79,168,596.47
5. Step 5: Solve for x
   x = 79,168,596.47/10,290.58
6. Step 6: Final answer
   x = 7,693.31