Finding the Fourth Proportional to 139,845.71, 209,768.40 and 34,664.69

Step by Step Solution

1. Step 1: Write the proportion equation
   139,845.71 : 209,768.40 = 34,664.69 : x
2. Step 2: Convert to fraction form
   139,845.71/209,768.40 = 34,664.69/x
3. Step 3: Cross multiply
   139,845.71x = 209,768.40 × 34,664.69
4. Step 4: Simplify right side
   139,845.71x = 7,271,557,082.22
5. Step 5: Solve for x
   x = 7,271,557,082.22/139,845.71
6. Step 6: Final answer
   x = 51,997.00