Finding the Fourth Proportional to 30,792.52, 42,493.71 and 16,645.38

Step by Step Solution

1. Step 1: Write the proportion equation
   30,792.52 : 42,493.71 = 16,645.38 : x
2. Step 2: Convert to fraction form
   30,792.52/42,493.71 = 16,645.38/x
3. Step 3: Cross multiply
   30,792.52x = 42,493.71 × 16,645.38
4. Step 4: Simplify right side
   30,792.52x = 707,323,950.56
5. Step 5: Solve for x
   x = 707,323,950.56/30,792.52
6. Step 6: Final answer
   x = 22,970.64