Finding the Fourth Proportional to 42,456.60, 63,647.24 and 21,369.06

Step by Step Solution

1. Step 1: Write the proportion equation
   42,456.60 : 63,647.24 = 21,369.06 : x
2. Step 2: Convert to fraction form
   42,456.60/63,647.24 = 21,369.06/x
3. Step 3: Cross multiply
   42,456.60x = 63,647.24 × 21,369.06
4. Step 4: Simplify right side
   42,456.60x = 1,360,081,583.55
5. Step 5: Solve for x
   x = 1,360,081,583.55/42,456.60
6. Step 6: Final answer
   x = 32,034.63