Finding the Fourth Proportional to 10,290.16, 14,200.32 and 5,574.36

Step by Step Solution

1. Step 1: Write the proportion equation
   10,290.16 : 14,200.32 = 5,574.36 : x
2. Step 2: Convert to fraction form
   10,290.16/14,200.32 = 5,574.36/x
3. Step 3: Cross multiply
   10,290.16x = 14,200.32 × 5,574.36
4. Step 4: Simplify right side
   10,290.16x = 79,157,695.80
5. Step 5: Solve for x
   x = 79,157,695.80/10,290.16
6. Step 6: Final answer
   x = 7,692.56