Finding the Fourth Proportional to 30,931.97, 42,696.41 and 22,005.37

Step by Step Solution

1. Step 1: Write the proportion equation
   30,931.97 : 42,696.41 = 22,005.37 : x
2. Step 2: Convert to fraction form
   30,931.97/42,696.41 = 22,005.37/x
3. Step 3: Cross multiply
   30,931.97x = 42,696.41 × 22,005.37
4. Step 4: Simplify right side
   30,931.97x = 939,550,082.95
5. Step 5: Solve for x
   x = 939,550,082.95/30,931.97
6. Step 6: Final answer
   x = 30,374.72