Finding the Fourth Proportional to 28,828.38, 39,771.72 and 17,493.72

Step by Step Solution

1. Step 1: Write the proportion equation
   28,828.38 : 39,771.72 = 17,493.72 : x
2. Step 2: Convert to fraction form
   28,828.38/39,771.72 = 17,493.72/x
3. Step 3: Cross multiply
   28,828.38x = 39,771.72 × 17,493.72
4. Step 4: Simplify right side
   28,828.38x = 695,755,333.60
5. Step 5: Solve for x
   x = 695,755,333.60/28,828.38
6. Step 6: Final answer
   x = 24,134.39