Finding the Fourth Proportional to 139,404.48, 209,110.82 and 34,223.45

Step by Step Solution

1. Step 1: Write the proportion equation
   139,404.48 : 209,110.82 = 34,223.45 : x
2. Step 2: Convert to fraction form
   139,404.48/209,110.82 = 34,223.45/x
3. Step 3: Cross multiply
   139,404.48x = 209,110.82 × 34,223.45
4. Step 4: Simplify right side
   139,404.48x = 7,156,492,476.06
5. Step 5: Solve for x
   x = 7,156,492,476.06/139,404.48
6. Step 6: Final answer
   x = 51,336.17