Finding the Fourth Proportional to 12,510.86, 17,265.42 and 7,134.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,510.86 : 17,265.42 = 7,134.08 : x
2. Step 2: Convert to fraction form
   12,510.86/17,265.42 = 7,134.08/x
3. Step 3: Cross multiply
   12,510.86x = 17,265.42 × 7,134.08
4. Step 4: Simplify right side
   12,510.86x = 123,172,887.51
5. Step 5: Solve for x
   x = 123,172,887.51/12,510.86
6. Step 6: Final answer
   x = 9,845.28