Finding the Fourth Proportional to 65,004.80, 91,203.55 and 65,004.80

Step by Step Solution

1. Step 1: Write the proportion equation
   65,004.80 : 91,203.55 = 65,004.80 : x
2. Step 2: Convert to fraction form
   65,004.80/91,203.55 = 65,004.80/x
3. Step 3: Cross multiply
   65,004.80x = 91,203.55 × 65,004.80
4. Step 4: Simplify right side
   65,004.80x = 5,928,668,527.04
5. Step 5: Solve for x
   x = 5,928,668,527.04/65,004.80
6. Step 6: Final answer
   x = 91,203.55