Finding the Fourth Proportional to 72,495.30, 108,570.15 and 72,495.30

Step by Step Solution

1. Step 1: Write the proportion equation
   72,495.30 : 108,570.15 = 72,495.30 : x
2. Step 2: Convert to fraction form
   72,495.30/108,570.15 = 72,495.30/x
3. Step 3: Cross multiply
   72,495.30x = 108,570.15 × 72,495.30
4. Step 4: Simplify right side
   72,495.30x = 7,870,825,595.30
5. Step 5: Solve for x
   x = 7,870,825,595.30/72,495.30
6. Step 6: Final answer
   x = 108,570.15