Finding the Fourth Proportional to 65,007.90, 91,273.50 and 65,007.90

Step by Step Solution

1. Step 1: Write the proportion equation
   65,007.90 : 91,273.50 = 65,007.90 : x
2. Step 2: Convert to fraction form
   65,007.90/91,273.50 = 65,007.90/x
3. Step 3: Cross multiply
   65,007.90x = 91,273.50 × 65,007.90
4. Step 4: Simplify right side
   65,007.90x = 5,933,498,560.65
5. Step 5: Solve for x
   x = 5,933,498,560.65/65,007.90
6. Step 6: Final answer
   x = 91,273.50