Finding the Fourth Proportional to 139,274.20, 191,459.33 and 119,822.12

Step by Step Solution

1. Step 1: Write the proportion equation
   139,274.20 : 191,459.33 = 119,822.12 : x
2. Step 2: Convert to fraction form
   139,274.20/191,459.33 = 119,822.12/x
3. Step 3: Cross multiply
   139,274.20x = 191,459.33 × 119,822.12
4. Step 4: Simplify right side
   139,274.20x = 22,941,062,814.38
5. Step 5: Solve for x
   x = 22,941,062,814.38/139,274.20
6. Step 6: Final answer
   x = 164,718.68