Finding the Fourth Proportional to 139,433.74, 209,155.56 and 44,651.60

Step by Step Solution

1. Step 1: Write the proportion equation
   139,433.74 : 209,155.56 = 44,651.60 : x
2. Step 2: Convert to fraction form
   139,433.74/209,155.56 = 44,651.60/x
3. Step 3: Cross multiply
   139,433.74x = 209,155.56 × 44,651.60
4. Step 4: Simplify right side
   139,433.74x = 9,339,131,276.09
5. Step 5: Solve for x
   x = 9,339,131,276.09/139,433.74
6. Step 6: Final answer
   x = 66,978.99