Finding the Fourth Proportional to 139,348.17, 208,822.95 and 111,353.34

Step by Step Solution

1. Step 1: Write the proportion equation
   139,348.17 : 208,822.95 = 111,353.34 : x
2. Step 2: Convert to fraction form
   139,348.17/208,822.95 = 111,353.34/x
3. Step 3: Cross multiply
   139,348.17x = 208,822.95 × 111,353.34
4. Step 4: Simplify right side
   139,348.17x = 23,253,132,951.15
5. Step 5: Solve for x
   x = 23,253,132,951.15/139,348.17
6. Step 6: Final answer
   x = 166,870.75