Finding the Fourth Proportional to 9,131.59, 12,601.61 and 5,153.07

Step by Step Solution

1. Step 1: Write the proportion equation
   9,131.59 : 12,601.61 = 5,153.07 : x
2. Step 2: Convert to fraction form
   9,131.59/12,601.61 = 5,153.07/x
3. Step 3: Cross multiply
   9,131.59x = 12,601.61 × 5,153.07
4. Step 4: Simplify right side
   9,131.59x = 64,936,952.68
5. Step 5: Solve for x
   x = 64,936,952.68/9,131.59
6. Step 6: Final answer
   x = 7,111.24