Finding the Fourth Proportional to 91,704.32, 137,568.72 and 36,287.36

Step by Step Solution

1. Step 1: Write the proportion equation
   91,704.32 : 137,568.72 = 36,287.36 : x
2. Step 2: Convert to fraction form
   91,704.32/137,568.72 = 36,287.36/x
3. Step 3: Cross multiply
   91,704.32x = 137,568.72 × 36,287.36
4. Step 4: Simplify right side
   91,704.32x = 4,992,005,667.38
5. Step 5: Solve for x
   x = 4,992,005,667.38/91,704.32
6. Step 6: Final answer
   x = 54,435.88