Finding the Fourth Proportional to 13,077.67, 18,045.83 and 7,771.46

Step by Step Solution

1. Step 1: Write the proportion equation
   13,077.67 : 18,045.83 = 7,771.46 : x
2. Step 2: Convert to fraction form
   13,077.67/18,045.83 = 7,771.46/x
3. Step 3: Cross multiply
   13,077.67x = 18,045.83 × 7,771.46
4. Step 4: Simplify right side
   13,077.67x = 140,242,510.56
5. Step 5: Solve for x
   x = 140,242,510.56/13,077.67
6. Step 6: Final answer
   x = 10,723.82