Finding the Fourth Proportional to 109,872.06, 164,638.46 and 74,193.56

Step by Step Solution

1. Step 1: Write the proportion equation
   109,872.06 : 164,638.46 = 74,193.56 : x
2. Step 2: Convert to fraction form
   109,872.06/164,638.46 = 74,193.56/x
3. Step 3: Cross multiply
   109,872.06x = 164,638.46 × 74,193.56
4. Step 4: Simplify right side
   109,872.06x = 12,215,113,460.32
5. Step 5: Solve for x
   x = 12,215,113,460.32/109,872.06
6. Step 6: Final answer
   x = 111,175.79