Finding the Fourth Proportional to 10,290.81, 14,201.42 and 5,575.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,290.81 : 14,201.42 = 5,575.20 : x
2. Step 2: Convert to fraction form
   10,290.81/14,201.42 = 5,575.20/x
3. Step 3: Cross multiply
   10,290.81x = 14,201.42 × 5,575.20
4. Step 4: Simplify right side
   10,290.81x = 79,175,756.78
5. Step 5: Solve for x
   x = 79,175,756.78/10,290.81
6. Step 6: Final answer
   x = 7,693.83