Finding the Fourth Proportional to 13,061.48, 18,020.50 and 7,395.64

Step by Step Solution

1. Step 1: Write the proportion equation
   13,061.48 : 18,020.50 = 7,395.64 : x
2. Step 2: Convert to fraction form
   13,061.48/18,020.50 = 7,395.64/x
3. Step 3: Cross multiply
   13,061.48x = 18,020.50 × 7,395.64
4. Step 4: Simplify right side
   13,061.48x = 133,273,130.62
5. Step 5: Solve for x
   x = 133,273,130.62/13,061.48
6. Step 6: Final answer
   x = 10,203.52