Finding the Fourth Proportional to 108,975.30, 152,215.50 and 108,975.30

Step by Step Solution

1. Step 1: Write the proportion equation
   108,975.30 : 152,215.50 = 108,975.30 : x
2. Step 2: Convert to fraction form
   108,975.30/152,215.50 = 108,975.30/x
3. Step 3: Cross multiply
   108,975.30x = 152,215.50 × 108,975.30
4. Step 4: Simplify right side
   108,975.30x = 16,587,729,777.15
5. Step 5: Solve for x
   x = 16,587,729,777.15/108,975.30
6. Step 6: Final answer
   x = 152,215.50