Finding the Fourth Proportional to 23,038.77, 31,796.58 and 12,969.18

Step by Step Solution

1. Step 1: Write the proportion equation
   23,038.77 : 31,796.58 = 12,969.18 : x
2. Step 2: Convert to fraction form
   23,038.77/31,796.58 = 12,969.18/x
3. Step 3: Cross multiply
   23,038.77x = 31,796.58 × 12,969.18
4. Step 4: Simplify right side
   23,038.77x = 412,375,569.40
5. Step 5: Solve for x
   x = 412,375,569.40/23,038.77
6. Step 6: Final answer
   x = 17,899.20