Finding the Fourth Proportional to 13,104.31, 18,080.84 and 7,437.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,104.31 : 18,080.84 = 7,437.82 : x
2. Step 2: Convert to fraction form
   13,104.31/18,080.84 = 7,437.82/x
3. Step 3: Cross multiply
   13,104.31x = 18,080.84 × 7,437.82
4. Step 4: Simplify right side
   13,104.31x = 134,482,033.37
5. Step 5: Solve for x
   x = 134,482,033.37/13,104.31
6. Step 6: Final answer
   x = 10,262.43