Finding the Fourth Proportional to 23,518.34, 32,455.70 and 12,908.96

Step by Step Solution

1. Step 1: Write the proportion equation
   23,518.34 : 32,455.70 = 12,908.96 : x
2. Step 2: Convert to fraction form
   23,518.34/32,455.70 = 12,908.96/x
3. Step 3: Cross multiply
   23,518.34x = 32,455.70 × 12,908.96
4. Step 4: Simplify right side
   23,518.34x = 418,969,333.07
5. Step 5: Solve for x
   x = 418,969,333.07/23,518.34
6. Step 6: Final answer
   x = 17,814.58