Finding the Fourth Proportional to 14,159.42, 19,539.61 and 7,786.03

Step by Step Solution

1. Step 1: Write the proportion equation
   14,159.42 : 19,539.61 = 7,786.03 : x
2. Step 2: Convert to fraction form
   14,159.42/19,539.61 = 7,786.03/x
3. Step 3: Cross multiply
   14,159.42x = 19,539.61 × 7,786.03
4. Step 4: Simplify right side
   14,159.42x = 152,135,941.44
5. Step 5: Solve for x
   x = 152,135,941.44/14,159.42
6. Step 6: Final answer
   x = 10,744.50