Finding the Fourth Proportional to 13,059.71, 18,022.25 and 7,394.30

Step by Step Solution

1. Step 1: Write the proportion equation
   13,059.71 : 18,022.25 = 7,394.30 : x
2. Step 2: Convert to fraction form
   13,059.71/18,022.25 = 7,394.30/x
3. Step 3: Cross multiply
   13,059.71x = 18,022.25 × 7,394.30
4. Step 4: Simplify right side
   13,059.71x = 133,261,851.55
5. Step 5: Solve for x
   x = 133,261,851.55/13,059.71
6. Step 6: Final answer
   x = 10,204.05