Finding the Fourth Proportional to 111,994.68, 154,498.17 and 71,676.12

Step by Step Solution

1. Step 1: Write the proportion equation
   111,994.68 : 154,498.17 = 71,676.12 : x
2. Step 2: Convert to fraction form
   111,994.68/154,498.17 = 71,676.12/x
3. Step 3: Cross multiply
   111,994.68x = 154,498.17 × 71,676.12
4. Step 4: Simplify right side
   111,994.68x = 11,073,829,372.70
5. Step 5: Solve for x
   x = 11,073,829,372.70/111,994.68
6. Step 6: Final answer
   x = 98,878.17