Finding the Fourth Proportional to 42,922.56, 64,396.26 and 17,949.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,922.56 : 64,396.26 = 17,949.72 : x
2. Step 2: Convert to fraction form
   42,922.56/64,396.26 = 17,949.72/x
3. Step 3: Cross multiply
   42,922.56x = 64,396.26 × 17,949.72
4. Step 4: Simplify right side
   42,922.56x = 1,155,894,836.05
5. Step 5: Solve for x
   x = 1,155,894,836.05/42,922.56
6. Step 6: Final answer
   x = 26,929.77