Finding the Fourth Proportional to 109,067.30, 163,568.55 and 42,469.10

Step by Step Solution

1. Step 1: Write the proportion equation
   109,067.30 : 163,568.55 = 42,469.10 : x
2. Step 2: Convert to fraction form
   109,067.30/163,568.55 = 42,469.10/x
3. Step 3: Cross multiply
   109,067.30x = 163,568.55 × 42,469.10
4. Step 4: Simplify right side
   109,067.30x = 6,946,609,106.81
5. Step 5: Solve for x
   x = 6,946,609,106.81/109,067.30
6. Step 6: Final answer
   x = 63,691.03