Finding the Fourth Proportional to 13,108.19, 18,090.50 and 8,075.34

Step by Step Solution

1. Step 1: Write the proportion equation
   13,108.19 : 18,090.50 = 8,075.34 : x
2. Step 2: Convert to fraction form
   13,108.19/18,090.50 = 8,075.34/x
3. Step 3: Cross multiply
   13,108.19x = 18,090.50 × 8,075.34
4. Step 4: Simplify right side
   13,108.19x = 146,086,897.89
5. Step 5: Solve for x
   x = 146,086,897.89/13,108.19
6. Step 6: Final answer
   x = 11,144.71