Finding the Fourth Proportional to 12,345.62, 17,036.73 and 7,039.41

Step by Step Solution

1. Step 1: Write the proportion equation
   12,345.62 : 17,036.73 = 7,039.41 : x
2. Step 2: Convert to fraction form
   12,345.62/17,036.73 = 7,039.41/x
3. Step 3: Cross multiply
   12,345.62x = 17,036.73 × 7,039.41
4. Step 4: Simplify right side
   12,345.62x = 119,928,463.64
5. Step 5: Solve for x
   x = 119,928,463.64/12,345.62
6. Step 6: Final answer
   x = 9,714.26