Finding the Fourth Proportional to 63,412.89, 87,426.81 and 54,555.54

Step by Step Solution

1. Step 1: Write the proportion equation
   63,412.89 : 87,426.81 = 54,555.54 : x
2. Step 2: Convert to fraction form
   63,412.89/87,426.81 = 54,555.54/x
3. Step 3: Cross multiply
   63,412.89x = 87,426.81 × 54,555.54
4. Step 4: Simplify right side
   63,412.89x = 4,769,616,830.03
5. Step 5: Solve for x
   x = 4,769,616,830.03/63,412.89
6. Step 6: Final answer
   x = 75,215.26