Finding the Fourth Proportional to 10,122.75, 13,968.72 and 5,815.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,122.75 : 13,968.72 = 5,815.98 : x
2. Step 2: Convert to fraction form
   10,122.75/13,968.72 = 5,815.98/x
3. Step 3: Cross multiply
   10,122.75x = 13,968.72 × 5,815.98
4. Step 4: Simplify right side
   10,122.75x = 81,241,796.15
5. Step 5: Solve for x
   x = 81,241,796.15/10,122.75
6. Step 6: Final answer
   x = 8,025.66