Finding the Fourth Proportional to 109,118.31, 163,676.82 and 28,065.21

Step by Step Solution

1. Step 1: Write the proportion equation
   109,118.31 : 163,676.82 = 28,065.21 : x
2. Step 2: Convert to fraction form
   109,118.31/163,676.82 = 28,065.21/x
3. Step 3: Cross multiply
   109,118.31x = 163,676.82 × 28,065.21
4. Step 4: Simplify right side
   109,118.31x = 4,593,624,325.43
5. Step 5: Solve for x
   x = 4,593,624,325.43/109,118.31
6. Step 6: Final answer
   x = 42,097.65