Finding the Fourth Proportional to 12,482.62, 17,228.96 and 7,180.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,482.62 : 17,228.96 = 7,180.50 : x
2. Step 2: Convert to fraction form
   12,482.62/17,228.96 = 7,180.50/x
3. Step 3: Cross multiply
   12,482.62x = 17,228.96 × 7,180.50
4. Step 4: Simplify right side
   12,482.62x = 123,712,547.28
5. Step 5: Solve for x
   x = 123,712,547.28/12,482.62
6. Step 6: Final answer
   x = 9,910.78