Finding the Fourth Proportional to 55,608.42, 76,774.48 and 42,837.56

Step by Step Solution

1. Step 1: Write the proportion equation
   55,608.42 : 76,774.48 = 42,837.56 : x
2. Step 2: Convert to fraction form
   55,608.42/76,774.48 = 42,837.56/x
3. Step 3: Cross multiply
   55,608.42x = 76,774.48 × 42,837.56
4. Step 4: Simplify right side
   55,608.42x = 3,288,831,431.37
5. Step 5: Solve for x
   x = 3,288,831,431.37/55,608.42
6. Step 6: Final answer
   x = 59,142.68