Finding the Fourth Proportional to 65,271.42, 90,067.79 and 38,412.33

Step by Step Solution

1. Step 1: Write the proportion equation
   65,271.42 : 90,067.79 = 38,412.33 : x
2. Step 2: Convert to fraction form
   65,271.42/90,067.79 = 38,412.33/x
3. Step 3: Cross multiply
   65,271.42x = 90,067.79 × 38,412.33
4. Step 4: Simplify right side
   65,271.42x = 3,459,713,214.06
5. Step 5: Solve for x
   x = 3,459,713,214.06/65,271.42
6. Step 6: Final answer
   x = 53,005.02