Finding the Fourth Proportional to 55,609.42, 76,775.86 and 42,838.56

Step by Step Solution

1. Step 1: Write the proportion equation
   55,609.42 : 76,775.86 = 42,838.56 : x
2. Step 2: Convert to fraction form
   55,609.42/76,775.86 = 42,838.56/x
3. Step 3: Cross multiply
   55,609.42x = 76,775.86 × 42,838.56
4. Step 4: Simplify right side
   55,609.42x = 3,288,967,285.16
5. Step 5: Solve for x
   x = 3,288,967,285.16/55,609.42
6. Step 6: Final answer
   x = 59,144.07