Finding the Fourth Proportional to 10,017.53, 13,823.61 and 5,479.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,017.53 : 13,823.61 = 5,479.31 : x
2. Step 2: Convert to fraction form
   10,017.53/13,823.61 = 5,479.31/x
3. Step 3: Cross multiply
   10,017.53x = 13,823.61 × 5,479.31
4. Step 4: Simplify right side
   10,017.53x = 75,743,775.39
5. Step 5: Solve for x
   x = 75,743,775.39/10,017.53
6. Step 6: Final answer
   x = 7,561.13