Finding the Fourth Proportional to 12,486.04, 17,231.60 and 7,180.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,486.04 : 17,231.60 = 7,180.52 : x
2. Step 2: Convert to fraction form
   12,486.04/17,231.60 = 7,180.52/x
3. Step 3: Cross multiply
   12,486.04x = 17,231.60 × 7,180.52
4. Step 4: Simplify right side
   12,486.04x = 123,731,848.43
5. Step 5: Solve for x
   x = 123,731,848.43/12,486.04
6. Step 6: Final answer
   x = 9,909.61