Finding the Fourth Proportional to 55,614.42, 76,782.78 and 42,843.57

Step by Step Solution

1. Step 1: Write the proportion equation
   55,614.42 : 76,782.78 = 42,843.57 : x
2. Step 2: Convert to fraction form
   55,614.42/76,782.78 = 42,843.57/x
3. Step 3: Cross multiply
   55,614.42x = 76,782.78 × 42,843.57
4. Step 4: Simplify right side
   55,614.42x = 3,289,648,409.72
5. Step 5: Solve for x
   x = 3,289,648,409.72/55,614.42
6. Step 6: Final answer
   x = 59,151.00