Finding the Fourth Proportional to 13,510.17, 18,647.99 and 7,847.46

Step by Step Solution

1. Step 1: Write the proportion equation
   13,510.17 : 18,647.99 = 7,847.46 : x
2. Step 2: Convert to fraction form
   13,510.17/18,647.99 = 7,847.46/x
3. Step 3: Cross multiply
   13,510.17x = 18,647.99 × 7,847.46
4. Step 4: Simplify right side
   13,510.17x = 146,339,223.13
5. Step 5: Solve for x
   x = 146,339,223.13/13,510.17
6. Step 6: Final answer
   x = 10,831.79