Finding the Fourth Proportional to 13,938.37, 19,234.50 and 7,969.93

Step by Step Solution

1. Step 1: Write the proportion equation
   13,938.37 : 19,234.50 = 7,969.93 : x
2. Step 2: Convert to fraction form
   13,938.37/19,234.50 = 7,969.93/x
3. Step 3: Cross multiply
   13,938.37x = 19,234.50 × 7,969.93
4. Step 4: Simplify right side
   13,938.37x = 153,297,618.59
5. Step 5: Solve for x
   x = 153,297,618.59/13,938.37
6. Step 6: Final answer
   x = 10,998.25