Finding the Fourth Proportional to 139,642.00, 192,101.25 and 122,336.43

Step by Step Solution

1. Step 1: Write the proportion equation
   139,642.00 : 192,101.25 = 122,336.43 : x
2. Step 2: Convert to fraction form
   139,642.00/192,101.25 = 122,336.43/x
3. Step 3: Cross multiply
   139,642.00x = 192,101.25 × 122,336.43
4. Step 4: Simplify right side
   139,642.00x = 23,500,982,073.30
5. Step 5: Solve for x
   x = 23,500,982,073.30/139,642.00
6. Step 6: Final answer
   x = 168,294.51