Finding the Fourth Proportional to 42,449.50, 63,678.30 and 17,491.24

Step by Step Solution

1. Step 1: Write the proportion equation
   42,449.50 : 63,678.30 = 17,491.24 : x
2. Step 2: Convert to fraction form
   42,449.50/63,678.30 = 17,491.24/x
3. Step 3: Cross multiply
   42,449.50x = 63,678.30 × 17,491.24
4. Step 4: Simplify right side
   42,449.50x = 1,113,812,428.09
5. Step 5: Solve for x
   x = 1,113,812,428.09/42,449.50
6. Step 6: Final answer
   x = 26,238.53