Finding the Fourth Proportional to 139,104.78, 208,673.50 and 44,301.77

Step by Step Solution

1. Step 1: Write the proportion equation
   139,104.78 : 208,673.50 = 44,301.77 : x
2. Step 2: Convert to fraction form
   139,104.78/208,673.50 = 44,301.77/x
3. Step 3: Cross multiply
   139,104.78x = 208,673.50 × 44,301.77
4. Step 4: Simplify right side
   139,104.78x = 9,244,605,402.10
5. Step 5: Solve for x
   x = 9,244,605,402.10/139,104.78
6. Step 6: Final answer
   x = 66,457.86