Finding the Fourth Proportional to 9,383.52, 12,948.66 and 5,191.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,383.52 : 12,948.66 = 5,191.50 : x
2. Step 2: Convert to fraction form
   9,383.52/12,948.66 = 5,191.50/x
3. Step 3: Cross multiply
   9,383.52x = 12,948.66 × 5,191.50
4. Step 4: Simplify right side
   9,383.52x = 67,222,968.39
5. Step 5: Solve for x
   x = 67,222,968.39/9,383.52
6. Step 6: Final answer
   x = 7,163.94