Finding the Fourth Proportional to 155,111.94, 214,136.10 and 104,391.30

Step by Step Solution

1. Step 1: Write the proportion equation
   155,111.94 : 214,136.10 = 104,391.30 : x
2. Step 2: Convert to fraction form
   155,111.94/214,136.10 = 104,391.30/x
3. Step 3: Cross multiply
   155,111.94x = 214,136.10 × 104,391.30
4. Step 4: Simplify right side
   155,111.94x = 22,353,945,855.93
5. Step 5: Solve for x
   x = 22,353,945,855.93/155,111.94
6. Step 6: Final answer
   x = 144,114.93