Finding the Fourth Proportional to 121,900.72, 182,785.33 and 55,304.51

Step by Step Solution

1. Step 1: Write the proportion equation
   121,900.72 : 182,785.33 = 55,304.51 : x
2. Step 2: Convert to fraction form
   121,900.72/182,785.33 = 55,304.51/x
3. Step 3: Cross multiply
   121,900.72x = 182,785.33 × 55,304.51
4. Step 4: Simplify right side
   121,900.72x = 10,108,852,951.49
5. Step 5: Solve for x
   x = 10,108,852,951.49/121,900.72
6. Step 6: Final answer
   x = 82,926.94