Finding the Fourth Proportional to 139,892.40, 209,834.82 and 34,710.12

Step by Step Solution

1. Step 1: Write the proportion equation
   139,892.40 : 209,834.82 = 34,710.12 : x
2. Step 2: Convert to fraction form
   139,892.40/209,834.82 = 34,710.12/x
3. Step 3: Cross multiply
   139,892.40x = 209,834.82 × 34,710.12
4. Step 4: Simplify right side
   139,892.40x = 7,283,391,782.38
5. Step 5: Solve for x
   x = 7,283,391,782.38/139,892.40
6. Step 6: Final answer
   x = 52,064.24