Finding the Fourth Proportional to 109,370.28, 164,069.07 and 42,801.78

Step by Step Solution

1. Step 1: Write the proportion equation
   109,370.28 : 164,069.07 = 42,801.78 : x
2. Step 2: Convert to fraction form
   109,370.28/164,069.07 = 42,801.78/x
3. Step 3: Cross multiply
   109,370.28x = 164,069.07 × 42,801.78
4. Step 4: Simplify right side
   109,370.28x = 7,022,448,238.94
5. Step 5: Solve for x
   x = 7,022,448,238.94/109,370.28
6. Step 6: Final answer
   x = 64,208.01