Finding the Fourth Proportional to 9,131.17, 12,601.19 and 5,357.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,131.17 : 12,601.19 = 5,357.22 : x
2. Step 2: Convert to fraction form
   9,131.17/12,601.19 = 5,357.22/x
3. Step 3: Cross multiply
   9,131.17x = 12,601.19 × 5,357.22
4. Step 4: Simplify right side
   9,131.17x = 67,507,347.09
5. Step 5: Solve for x
   x = 67,507,347.09/9,131.17
6. Step 6: Final answer
   x = 7,393.07