Finding the Fourth Proportional to 139,768.64, 209,588.72 and 44,981.33

Step by Step Solution

1. Step 1: Write the proportion equation
   139,768.64 : 209,588.72 = 44,981.33 : x
2. Step 2: Convert to fraction form
   139,768.64/209,588.72 = 44,981.33/x
3. Step 3: Cross multiply
   139,768.64x = 209,588.72 × 44,981.33
4. Step 4: Simplify right side
   139,768.64x = 9,427,578,105.75
5. Step 5: Solve for x
   x = 9,427,578,105.75/139,768.64
6. Step 6: Final answer
   x = 67,451.31