Finding the Fourth Proportional to 154,196.37, 212,726.51 and 120,145.73

Step by Step Solution

1. Step 1: Write the proportion equation
   154,196.37 : 212,726.51 = 120,145.73 : x
2. Step 2: Convert to fraction form
   154,196.37/212,726.51 = 120,145.73/x
3. Step 3: Cross multiply
   154,196.37x = 212,726.51 × 120,145.73
4. Step 4: Simplify right side
   154,196.37x = 25,558,181,901.55
5. Step 5: Solve for x
   x = 25,558,181,901.55/154,196.37
6. Step 6: Final answer
   x = 165,750.86