Finding the Fourth Proportional to 23,123.04, 31,908.69 and 13,561.62

Step by Step Solution

1. Step 1: Write the proportion equation
   23,123.04 : 31,908.69 = 13,561.62 : x
2. Step 2: Convert to fraction form
   23,123.04/31,908.69 = 13,561.62/x
3. Step 3: Cross multiply
   23,123.04x = 31,908.69 × 13,561.62
4. Step 4: Simplify right side
   23,123.04x = 432,733,528.48
5. Step 5: Solve for x
   x = 432,733,528.48/23,123.04
6. Step 6: Final answer
   x = 18,714.39