Finding the Fourth Proportional to 42,052.49, 63,078.72 and 28,864.88

Step by Step Solution

1. Step 1: Write the proportion equation
   42,052.49 : 63,078.72 = 28,864.88 : x
2. Step 2: Convert to fraction form
   42,052.49/63,078.72 = 28,864.88/x
3. Step 3: Cross multiply
   42,052.49x = 63,078.72 × 28,864.88
4. Step 4: Simplify right side
   42,052.49x = 1,820,759,683.35
5. Step 5: Solve for x
   x = 1,820,759,683.35/42,052.49
6. Step 6: Final answer
   x = 43,297.31