Finding the Fourth Proportional to 9,383.26, 12,948.88 and 5,191.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,383.26 : 12,948.88 = 5,191.50 : x
2. Step 2: Convert to fraction form
   9,383.26/12,948.88 = 5,191.50/x
3. Step 3: Cross multiply
   9,383.26x = 12,948.88 × 5,191.50
4. Step 4: Simplify right side
   9,383.26x = 67,224,110.52
5. Step 5: Solve for x
   x = 67,224,110.52/9,383.26
6. Step 6: Final answer
   x = 7,164.26