Finding the Fourth Proportional to 15,075.42, 20,801.59 and 8,359.98

Step by Step Solution

1. Step 1: Write the proportion equation
   15,075.42 : 20,801.59 = 8,359.98 : x
2. Step 2: Convert to fraction form
   15,075.42/20,801.59 = 8,359.98/x
3. Step 3: Cross multiply
   15,075.42x = 20,801.59 × 8,359.98
4. Step 4: Simplify right side
   15,075.42x = 173,900,855.47
5. Step 5: Solve for x
   x = 173,900,855.47/15,075.42
6. Step 6: Final answer
   x = 11,535.39