Finding the Fourth Proportional to 23,431.59, 32,335.61 and 12,821.13

Step by Step Solution

1. Step 1: Write the proportion equation
   23,431.59 : 32,335.61 = 12,821.13 : x
2. Step 2: Convert to fraction form
   23,431.59/32,335.61 = 12,821.13/x
3. Step 3: Cross multiply
   23,431.59x = 32,335.61 × 12,821.13
4. Step 4: Simplify right side
   23,431.59x = 414,578,995.33
5. Step 5: Solve for x
   x = 414,578,995.33/23,431.59
6. Step 6: Final answer
   x = 17,693.17