Finding the Fourth Proportional to 23,100.34, 34,469.12 and 21,689.68

Step by Step Solution

1. Step 1: Write the proportion equation
   23,100.34 : 34,469.12 = 21,689.68 : x
2. Step 2: Convert to fraction form
   23,100.34/34,469.12 = 21,689.68/x
3. Step 3: Cross multiply
   23,100.34x = 34,469.12 × 21,689.68
4. Step 4: Simplify right side
   23,100.34x = 747,624,182.68
5. Step 5: Solve for x
   x = 747,624,182.68/23,100.34
6. Step 6: Final answer
   x = 32,364.21