Finding the Fourth Proportional to 121,105.38, 167,123.34 and 67,388.88

Step by Step Solution

1. Step 1: Write the proportion equation
   121,105.38 : 167,123.34 = 67,388.88 : x
2. Step 2: Convert to fraction form
   121,105.38/167,123.34 = 67,388.88/x
3. Step 3: Cross multiply
   121,105.38x = 167,123.34 × 67,388.88
4. Step 4: Simplify right side
   121,105.38x = 11,262,254,704.46
5. Step 5: Solve for x
   x = 11,262,254,704.46/121,105.38
6. Step 6: Final answer
   x = 92,995.49