Finding the Fourth Proportional to 13,273.74, 18,314.82 and 7,681.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,273.74 : 18,314.82 = 7,681.50 : x
2. Step 2: Convert to fraction form
   13,273.74/18,314.82 = 7,681.50/x
3. Step 3: Cross multiply
   13,273.74x = 18,314.82 × 7,681.50
4. Step 4: Simplify right side
   13,273.74x = 140,685,289.83
5. Step 5: Solve for x
   x = 140,685,289.83/13,273.74
6. Step 6: Final answer
   x = 10,598.77