Finding the Fourth Proportional to 13,105.99, 18,084.88 and 7,655.23

Step by Step Solution

1. Step 1: Write the proportion equation
   13,105.99 : 18,084.88 = 7,655.23 : x
2. Step 2: Convert to fraction form
   13,105.99/18,084.88 = 7,655.23/x
3. Step 3: Cross multiply
   13,105.99x = 18,084.88 × 7,655.23
4. Step 4: Simplify right side
   13,105.99x = 138,443,915.92
5. Step 5: Solve for x
   x = 138,443,915.92/13,105.99
6. Step 6: Final answer
   x = 10,563.41