Finding the Fourth Proportional to 23,059.34, 31,822.20 and 13,505.18

Step by Step Solution

1. Step 1: Write the proportion equation
   23,059.34 : 31,822.20 = 13,505.18 : x
2. Step 2: Convert to fraction form
   23,059.34/31,822.20 = 13,505.18/x
3. Step 3: Cross multiply
   23,059.34x = 31,822.20 × 13,505.18
4. Step 4: Simplify right side
   23,059.34x = 429,764,539.00
5. Step 5: Solve for x
   x = 429,764,539.00/23,059.34
6. Step 6: Final answer
   x = 18,637.33