Finding the Fourth Proportional to 121,571.34, 182,436.78 and 42,683.54

Step by Step Solution

1. Step 1: Write the proportion equation
   121,571.34 : 182,436.78 = 42,683.54 : x
2. Step 2: Convert to fraction form
   121,571.34/182,436.78 = 42,683.54/x
3. Step 3: Cross multiply
   121,571.34x = 182,436.78 × 42,683.54
4. Step 4: Simplify right side
   121,571.34x = 7,787,047,596.60
5. Step 5: Solve for x
   x = 7,787,047,596.60/121,571.34
6. Step 6: Final answer
   x = 64,053.32