Finding the Fourth Proportional to 72,665.30, 101,964.70 and 72,665.30

Step by Step Solution

1. Step 1: Write the proportion equation
   72,665.30 : 101,964.70 = 72,665.30 : x
2. Step 2: Convert to fraction form
   72,665.30/101,964.70 = 72,665.30/x
3. Step 3: Cross multiply
   72,665.30x = 101,964.70 × 72,665.30
4. Step 4: Simplify right side
   72,665.30x = 7,409,295,514.91
5. Step 5: Solve for x
   x = 7,409,295,514.91/72,665.30
6. Step 6: Final answer
   x = 101,964.70