Finding the Fourth Proportional to 10,290.32, 14,200.74 and 5,574.70

Step by Step Solution

1. Step 1: Write the proportion equation
   10,290.32 : 14,200.74 = 5,574.70 : x
2. Step 2: Convert to fraction form
   10,290.32/14,200.74 = 5,574.70/x
3. Step 3: Cross multiply
   10,290.32x = 14,200.74 × 5,574.70
4. Step 4: Simplify right side
   10,290.32x = 79,164,766.40
5. Step 5: Solve for x
   x = 79,164,766.40/10,290.32
6. Step 6: Final answer
   x = 7,693.13