Finding the Fourth Proportional to 23,140.16, 31,933.27 and 12,529.77

Step by Step Solution

1. Step 1: Write the proportion equation
   23,140.16 : 31,933.27 = 12,529.77 : x
2. Step 2: Convert to fraction form
   23,140.16/31,933.27 = 12,529.77/x
3. Step 3: Cross multiply
   23,140.16x = 31,933.27 × 12,529.77
4. Step 4: Simplify right side
   23,140.16x = 400,116,528.45
5. Step 5: Solve for x
   x = 400,116,528.45/23,140.16
6. Step 6: Final answer
   x = 17,291.00