Finding the Fourth Proportional to 17,162,860.72, 25,743,892.56 and 8,640,909.04

Step by Step Solution

1. Step 1: Write the proportion equation
   17,162,860.72 : 25,743,892.56 = 8,640,909.04 : x
2. Step 2: Convert to fraction form
   17,162,860.72/25,743,892.56 = 8,640,909.04/x
3. Step 3: Cross multiply
   17,162,860.72x = 25,743,892.56 × 8,640,909.04
4. Step 4: Simplify right side
   17,162,860.72x = 222,450,633,946,492.72
5. Step 5: Solve for x
   x = 222,450,633,946,492.72/17,162,860.72
6. Step 6: Final answer
   x = 12,961,162.92