Finding the Fourth Proportional to 55,404.65, 76,974.56 and 54,740.35

Step by Step Solution

1. Step 1: Write the proportion equation
   55,404.65 : 76,974.56 = 54,740.35 : x
2. Step 2: Convert to fraction form
   55,404.65/76,974.56 = 54,740.35/x
3. Step 3: Cross multiply
   55,404.65x = 76,974.56 × 54,740.35
4. Step 4: Simplify right side
   55,404.65x = 4,213,614,355.50
5. Step 5: Solve for x
   x = 4,213,614,355.50/55,404.65
6. Step 6: Final answer
   x = 76,051.64