Finding the Fourth Proportional to 23,185,797.49, 31,995,151.42 and 12,871,856.28

Step by Step Solution

1. Step 1: Write the proportion equation
   23,185,797.49 : 31,995,151.42 = 12,871,856.28 : x
2. Step 2: Convert to fraction form
   23,185,797.49/31,995,151.42 = 12,871,856.28/x
3. Step 3: Cross multiply
   23,185,797.49x = 31,995,151.42 × 12,871,856.28
4. Step 4: Simplify right side
   23,185,797.49x = 411,836,990,735,077.94
5. Step 5: Solve for x
   x = 411,836,990,735,077.94/23,185,797.49
6. Step 6: Final answer
   x = 17,762,468.21