Finding the Fourth Proportional to 72,853.56, 109,243.80 and 35,390.16

Step by Step Solution

1. Step 1: Write the proportion equation
   72,853.56 : 109,243.80 = 35,390.16 : x
2. Step 2: Convert to fraction form
   72,853.56/109,243.80 = 35,390.16/x
3. Step 3: Cross multiply
   72,853.56x = 109,243.80 × 35,390.16
4. Step 4: Simplify right side
   72,853.56x = 3,866,155,561.01
5. Step 5: Solve for x
   x = 3,866,155,561.01/72,853.56
6. Step 6: Final answer
   x = 53,067.49