Finding the Fourth Proportional to 42,556.62, 63,845.04 and 21,444.78

Step by Step Solution

1. Step 1: Write the proportion equation
   42,556.62 : 63,845.04 = 21,444.78 : x
2. Step 2: Convert to fraction form
   42,556.62/63,845.04 = 21,444.78/x
3. Step 3: Cross multiply
   42,556.62x = 63,845.04 × 21,444.78
4. Step 4: Simplify right side
   42,556.62x = 1,369,142,836.89
5. Step 5: Solve for x
   x = 1,369,142,836.89/42,556.62
6. Step 6: Final answer
   x = 32,172.26