Finding the Fourth Proportional to 65,860.52, 90,886.73 and 35,645.12

Step by Step Solution

1. Step 1: Write the proportion equation
   65,860.52 : 90,886.73 = 35,645.12 : x
2. Step 2: Convert to fraction form
   65,860.52/90,886.73 = 35,645.12/x
3. Step 3: Cross multiply
   65,860.52x = 90,886.73 × 35,645.12
4. Step 4: Simplify right side
   65,860.52x = 3,239,668,105.42
5. Step 5: Solve for x
   x = 3,239,668,105.42/65,860.52
6. Step 6: Final answer
   x = 49,189.84