Finding the Fourth Proportional to 13,010.50, 17,954.52 and 7,421.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,010.50 : 17,954.52 = 7,421.50 : x
2. Step 2: Convert to fraction form
   13,010.50/17,954.52 = 7,421.50/x
3. Step 3: Cross multiply
   13,010.50x = 17,954.52 × 7,421.50
4. Step 4: Simplify right side
   13,010.50x = 133,249,470.18
5. Step 5: Solve for x
   x = 133,249,470.18/13,010.50
6. Step 6: Final answer
   x = 10,241.69