Finding the Fourth Proportional to 121,144.47, 167,150.77 and 101,836.79

Step by Step Solution

1. Step 1: Write the proportion equation
   121,144.47 : 167,150.77 = 101,836.79 : x
2. Step 2: Convert to fraction form
   121,144.47/167,150.77 = 101,836.79/x
3. Step 3: Cross multiply
   121,144.47x = 167,150.77 × 101,836.79
4. Step 4: Simplify right side
   121,144.47x = 17,022,096,517.89
5. Step 5: Solve for x
   x = 17,022,096,517.89/121,144.47
6. Step 6: Final answer
   x = 140,510.72