Finding the Fourth Proportional to 65,015.30, 91,144.30 and 65,015.30

Step by Step Solution

1. Step 1: Write the proportion equation
   65,015.30 : 91,144.30 = 65,015.30 : x
2. Step 2: Convert to fraction form
   65,015.30/91,144.30 = 65,015.30/x
3. Step 3: Cross multiply
   65,015.30x = 91,144.30 × 65,015.30
4. Step 4: Simplify right side
   65,015.30x = 5,925,774,007.79
5. Step 5: Solve for x
   x = 5,925,774,007.79/65,015.30
6. Step 6: Final answer
   x = 91,144.30