Finding the Fourth Proportional to 12,707.37, 17,536.87 and 7,042.00

Step by Step Solution

1. Step 1: Write the proportion equation
   12,707.37 : 17,536.87 = 7,042.00 : x
2. Step 2: Convert to fraction form
   12,707.37/17,536.87 = 7,042.00/x
3. Step 3: Cross multiply
   12,707.37x = 17,536.87 × 7,042.00
4. Step 4: Simplify right side
   12,707.37x = 123,494,550.86
5. Step 5: Solve for x
   x = 123,494,550.86/12,707.37
6. Step 6: Final answer
   x = 9,718.34