Finding the Fourth Proportional to 12,354.46, 17,075.82 and 10,928.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,354.46 : 17,075.82 = 10,928.06 : x
2. Step 2: Convert to fraction form
   12,354.46/17,075.82 = 10,928.06/x
3. Step 3: Cross multiply
   12,354.46x = 17,075.82 × 10,928.06
4. Step 4: Simplify right side
   12,354.46x = 186,605,585.51
5. Step 5: Solve for x
   x = 186,605,585.51/12,354.46
6. Step 6: Final answer
   x = 15,104.31