Finding the Fourth Proportional to 13,771.28, 19,002.82 and 7,801.67

Step by Step Solution

1. Step 1: Write the proportion equation
   13,771.28 : 19,002.82 = 7,801.67 : x
2. Step 2: Convert to fraction form
   13,771.28/19,002.82 = 7,801.67/x
3. Step 3: Cross multiply
   13,771.28x = 19,002.82 × 7,801.67
4. Step 4: Simplify right side
   13,771.28x = 148,253,730.71
5. Step 5: Solve for x
   x = 148,253,730.71/13,771.28
6. Step 6: Final answer
   x = 10,765.43