Finding the Fourth Proportional to 11,978.34, 17,968.23 and 5,050.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,978.34 : 17,968.23 = 5,050.50 : x
2. Step 2: Convert to fraction form
   11,978.34/17,968.23 = 5,050.50/x
3. Step 3: Cross multiply
   11,978.34x = 17,968.23 × 5,050.50
4. Step 4: Simplify right side
   11,978.34x = 90,748,545.62
5. Step 5: Solve for x
   x = 90,748,545.62/11,978.34
6. Step 6: Final answer
   x = 7,576.05