Finding the Fourth Proportional to 23,082,640, 31,854,981.12 and 12,769,185.28

Step by Step Solution

1. Step 1: Write the proportion equation
   23,082,640 : 31,854,981.12 = 12,769,185.28 : x
2. Step 2: Convert to fraction form
   23,082,640/31,854,981.12 = 12,769,185.28/x
3. Step 3: Cross multiply
   23,082,640x = 31,854,981.12 × 12,769,185.28
4. Step 4: Simplify right side
   23,082,640x = 406,762,156,012,181.88
5. Step 5: Solve for x
   x = 406,762,156,012,181.88/23,082,640
6. Step 6: Final answer
   x = 17,621,994.54