Finding the Fourth Proportional to 12,612.06, 17,406.68 and 7,309.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,612.06 : 17,406.68 = 7,309.94 : x
2. Step 2: Convert to fraction form
   12,612.06/17,406.68 = 7,309.94/x
3. Step 3: Cross multiply
   12,612.06x = 17,406.68 × 7,309.94
4. Step 4: Simplify right side
   12,612.06x = 127,241,662.82
5. Step 5: Solve for x
   x = 127,241,662.82/12,612.06
6. Step 6: Final answer
   x = 10,088.89