Finding the Fourth Proportional to 109,369.16, 164,067.42 and 42,800.69

Step by Step Solution

1. Step 1: Write the proportion equation
   109,369.16 : 164,067.42 = 42,800.69 : x
2. Step 2: Convert to fraction form
   109,369.16/164,067.42 = 42,800.69/x
3. Step 3: Cross multiply
   109,369.16x = 164,067.42 × 42,800.69
4. Step 4: Simplify right side
   109,369.16x = 7,022,197,962.18
5. Step 5: Solve for x
   x = 7,022,197,962.18/109,369.16
6. Step 6: Final answer
   x = 64,206.38