Finding the Fourth Proportional to 19,620.30, 27,075.96 and 10,667.82

Step by Step Solution

1. Step 1: Write the proportion equation
   19,620.30 : 27,075.96 = 10,667.82 : x
2. Step 2: Convert to fraction form
   19,620.30/27,075.96 = 10,667.82/x
3. Step 3: Cross multiply
   19,620.30x = 27,075.96 × 10,667.82
4. Step 4: Simplify right side
   19,620.30x = 288,841,467.61
5. Step 5: Solve for x
   x = 288,841,467.61/19,620.30
6. Step 6: Final answer
   x = 14,721.56