Finding the Fourth Proportional to 137,019.82, 189,111.42 and 79,676.89

Step by Step Solution

1. Step 1: Write the proportion equation
   137,019.82 : 189,111.42 = 79,676.89 : x
2. Step 2: Convert to fraction form
   137,019.82/189,111.42 = 79,676.89/x
3. Step 3: Cross multiply
   137,019.82x = 189,111.42 × 79,676.89
4. Step 4: Simplify right side
   137,019.82x = 15,067,809,809.08
5. Step 5: Solve for x
   x = 15,067,809,809.08/137,019.82
6. Step 6: Final answer
   x = 109,968.10