Finding the Fourth Proportional to 12,510.34, 17,265.32 and 7,134.40

Step by Step Solution

1. Step 1: Write the proportion equation
   12,510.34 : 17,265.32 = 7,134.40 : x
2. Step 2: Convert to fraction form
   12,510.34/17,265.32 = 7,134.40/x
3. Step 3: Cross multiply
   12,510.34x = 17,265.32 × 7,134.40
4. Step 4: Simplify right side
   12,510.34x = 123,177,699.01
5. Step 5: Solve for x
   x = 123,177,699.01/12,510.34
6. Step 6: Final answer
   x = 9,846.07