Finding the Fourth Proportional to 12,327.33, 17,012.05 and 7,547.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,327.33 : 17,012.05 = 7,547.18 : x
2. Step 2: Convert to fraction form
   12,327.33/17,012.05 = 7,547.18/x
3. Step 3: Cross multiply
   12,327.33x = 17,012.05 × 7,547.18
4. Step 4: Simplify right side
   12,327.33x = 128,393,003.52
5. Step 5: Solve for x
   x = 128,393,003.52/12,327.33
6. Step 6: Final answer
   x = 10,415.31