Finding the Fourth Proportional to 23,498.26, 32,428.58 and 12,888.34

Step by Step Solution

1. Step 1: Write the proportion equation
   23,498.26 : 32,428.58 = 12,888.34 : x
2. Step 2: Convert to fraction form
   23,498.26/32,428.58 = 12,888.34/x
3. Step 3: Cross multiply
   23,498.26x = 32,428.58 × 12,888.34
4. Step 4: Simplify right side
   23,498.26x = 417,950,564.76
5. Step 5: Solve for x
   x = 417,950,564.76/23,498.26
6. Step 6: Final answer
   x = 17,786.45