Finding the Fourth Proportional to 65,005.55, 91,204.60 and 65,005.55

Step by Step Solution

1. Step 1: Write the proportion equation
   65,005.55 : 91,204.60 = 65,005.55 : x
2. Step 2: Convert to fraction form
   65,005.55/91,204.60 = 65,005.55/x
3. Step 3: Cross multiply
   65,005.55x = 91,204.60 × 65,005.55
4. Step 4: Simplify right side
   65,005.55x = 5,928,805,185.53
5. Step 5: Solve for x
   x = 5,928,805,185.53/65,005.55
6. Step 6: Final answer
   x = 91,204.60