Finding the Fourth Proportional to 55,206.42, 82,688.94 and 42,693.54

Step by Step Solution

1. Step 1: Write the proportion equation
   55,206.42 : 82,688.94 = 42,693.54 : x
2. Step 2: Convert to fraction form
   55,206.42/82,688.94 = 42,693.54/x
3. Step 3: Cross multiply
   55,206.42x = 82,688.94 × 42,693.54
4. Step 4: Simplify right side
   55,206.42x = 3,530,283,567.45
5. Step 5: Solve for x
   x = 3,530,283,567.45/55,206.42
6. Step 6: Final answer
   x = 63,946.98