Finding the Fourth Proportional to 13,730.44, 18,950.50 and 7,762.09

Step by Step Solution

1. Step 1: Write the proportion equation
   13,730.44 : 18,950.50 = 7,762.09 : x
2. Step 2: Convert to fraction form
   13,730.44/18,950.50 = 7,762.09/x
3. Step 3: Cross multiply
   13,730.44x = 18,950.50 × 7,762.09
4. Step 4: Simplify right side
   13,730.44x = 147,095,486.55
5. Step 5: Solve for x
   x = 147,095,486.55/13,730.44
6. Step 6: Final answer
   x = 10,713.09