Finding the Fourth Proportional to 65,426.07, 90,285.80 and 38,568.09

Step by Step Solution

1. Step 1: Write the proportion equation
   65,426.07 : 90,285.80 = 38,568.09 : x
2. Step 2: Convert to fraction form
   65,426.07/90,285.80 = 38,568.09/x
3. Step 3: Cross multiply
   65,426.07x = 90,285.80 × 38,568.09
4. Step 4: Simplify right side
   65,426.07x = 3,482,150,667.28
5. Step 5: Solve for x
   x = 3,482,150,667.28/65,426.07
6. Step 6: Final answer
   x = 53,222.68