Finding the Fourth Proportional to 42,447.87, 63,647.37 and 17,505.18

Step by Step Solution

1. Step 1: Write the proportion equation
   42,447.87 : 63,647.37 = 17,505.18 : x
2. Step 2: Convert to fraction form
   42,447.87/63,647.37 = 17,505.18/x
3. Step 3: Cross multiply
   42,447.87x = 63,647.37 × 17,505.18
4. Step 4: Simplify right side
   42,447.87x = 1,114,158,668.38
5. Step 5: Solve for x
   x = 1,114,158,668.38/42,447.87
6. Step 6: Final answer
   x = 26,247.69