Finding the Fourth Proportional to 23,145.23, 31,931.61 and 17,109.96

Step by Step Solution

1. Step 1: Write the proportion equation
   23,145.23 : 31,931.61 = 17,109.96 : x
2. Step 2: Convert to fraction form
   23,145.23/31,931.61 = 17,109.96/x
3. Step 3: Cross multiply
   23,145.23x = 31,931.61 × 17,109.96
4. Step 4: Simplify right side
   23,145.23x = 546,348,569.84
5. Step 5: Solve for x
   x = 546,348,569.84/23,145.23
6. Step 6: Final answer
   x = 23,605.23