Finding the Fourth Proportional to 30,940.30, 42,696.47 and 16,792.84

Step by Step Solution

1. Step 1: Write the proportion equation
   30,940.30 : 42,696.47 = 16,792.84 : x
2. Step 2: Convert to fraction form
   30,940.30/42,696.47 = 16,792.84/x
3. Step 3: Cross multiply
   30,940.30x = 42,696.47 × 16,792.84
4. Step 4: Simplify right side
   30,940.30x = 716,994,691.83
5. Step 5: Solve for x
   x = 716,994,691.83/30,940.30
6. Step 6: Final answer
   x = 23,173.49