Finding the Fourth Proportional to 23,510.88, 32,443.90 and 12,900.28

Step by Step Solution

1. Step 1: Write the proportion equation
   23,510.88 : 32,443.90 = 12,900.28 : x
2. Step 2: Convert to fraction form
   23,510.88/32,443.90 = 12,900.28/x
3. Step 3: Cross multiply
   23,510.88x = 32,443.90 × 12,900.28
4. Step 4: Simplify right side
   23,510.88x = 418,535,394.29
5. Step 5: Solve for x
   x = 418,535,394.29/23,510.88
6. Step 6: Final answer
   x = 17,801.77