Finding the Fourth Proportional to 139,249.71, 208,878.66 and 34,068.69

Step by Step Solution

1. Step 1: Write the proportion equation
   139,249.71 : 208,878.66 = 34,068.69 : x
2. Step 2: Convert to fraction form
   139,249.71/208,878.66 = 34,068.69/x
3. Step 3: Cross multiply
   139,249.71x = 208,878.66 × 34,068.69
4. Step 4: Simplify right side
   139,249.71x = 7,116,222,315.16
5. Step 5: Solve for x
   x = 7,116,222,315.16/139,249.71
6. Step 6: Final answer
   x = 51,104.04