Finding the Fourth Proportional to 109,016.76, 163,493.55 and 42,442.05

Step by Step Solution

1. Step 1: Write the proportion equation
   109,016.76 : 163,493.55 = 42,442.05 : x
2. Step 2: Convert to fraction form
   109,016.76/163,493.55 = 42,442.05/x
3. Step 3: Cross multiply
   109,016.76x = 163,493.55 × 42,442.05
4. Step 4: Simplify right side
   109,016.76x = 6,939,001,423.78
5. Step 5: Solve for x
   x = 6,939,001,423.78/109,016.76
6. Step 6: Final answer
   x = 63,650.78