Finding the Fourth Proportional to 12,705.11, 17,532.35 and 7,039.41

Step by Step Solution

1. Step 1: Write the proportion equation
   12,705.11 : 17,532.35 = 7,039.41 : x
2. Step 2: Convert to fraction form
   12,705.11/17,532.35 = 7,039.41/x
3. Step 3: Cross multiply
   12,705.11x = 17,532.35 × 7,039.41
4. Step 4: Simplify right side
   12,705.11x = 123,417,399.91
5. Step 5: Solve for x
   x = 123,417,399.91/12,705.11
6. Step 6: Final answer
   x = 9,714.00