Finding the Fourth Proportional to 13,764.55, 18,995.06 and 7,796.21

Step by Step Solution

1. Step 1: Write the proportion equation
   13,764.55 : 18,995.06 = 7,796.21 : x
2. Step 2: Convert to fraction form
   13,764.55/18,995.06 = 7,796.21/x
3. Step 3: Cross multiply
   13,764.55x = 18,995.06 × 7,796.21
4. Step 4: Simplify right side
   13,764.55x = 148,089,476.72
5. Step 5: Solve for x
   x = 148,089,476.72/13,764.55
6. Step 6: Final answer
   x = 10,758.76