Finding the Fourth Proportional to 9,131.25, 12,601.22 and 4,939.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,131.25 : 12,601.22 = 4,939.59 : x
2. Step 2: Convert to fraction form
   9,131.25/12,601.22 = 4,939.59/x
3. Step 3: Cross multiply
   9,131.25x = 12,601.22 × 4,939.59
4. Step 4: Simplify right side
   9,131.25x = 62,244,835.60
5. Step 5: Solve for x
   x = 62,244,835.60/9,131.25
6. Step 6: Final answer
   x = 6,816.68