Finding the Fourth Proportional to 23,123.48, 31,903.74 and 13,051.40

Step by Step Solution

1. Step 1: Write the proportion equation
   23,123.48 : 31,903.74 = 13,051.40 : x
2. Step 2: Convert to fraction form
   23,123.48/31,903.74 = 13,051.40/x
3. Step 3: Cross multiply
   23,123.48x = 31,903.74 × 13,051.40
4. Step 4: Simplify right side
   23,123.48x = 416,388,472.24
5. Step 5: Solve for x
   x = 416,388,472.24/23,123.48
6. Step 6: Final answer
   x = 18,007.17