Finding the Fourth Proportional to 139,902.72, 193,100.16 and 108,023.04

Step by Step Solution

1. Step 1: Write the proportion equation
   139,902.72 : 193,100.16 = 108,023.04 : x
2. Step 2: Convert to fraction form
   139,902.72/193,100.16 = 108,023.04/x
3. Step 3: Cross multiply
   139,902.72x = 193,100.16 × 108,023.04
4. Step 4: Simplify right side
   139,902.72x = 20,859,266,307.69
5. Step 5: Solve for x
   x = 20,859,266,307.69/139,902.72
6. Step 6: Final answer
   x = 149,098.36