Finding the Fourth Proportional to 28,300.71, 42,469.49 and 10,770.69

Step by Step Solution

1. Step 1: Write the proportion equation
   28,300.71 : 42,469.49 = 10,770.69 : x
2. Step 2: Convert to fraction form
   28,300.71/42,469.49 = 10,770.69/x
3. Step 3: Cross multiply
   28,300.71x = 42,469.49 × 10,770.69
4. Step 4: Simplify right side
   28,300.71x = 457,425,445.05
5. Step 5: Solve for x
   x = 457,425,445.05/28,300.71
6. Step 6: Final answer
   x = 16,163.04