Finding the Fourth Proportional to 12,287.32, 18,437.82 and 7,366.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,287.32 : 18,437.82 = 7,366.30 : x
2. Step 2: Convert to fraction form
   12,287.32/18,437.82 = 7,366.30/x
3. Step 3: Cross multiply
   12,287.32x = 18,437.82 × 7,366.30
4. Step 4: Simplify right side
   12,287.32x = 135,818,513.47
5. Step 5: Solve for x
   x = 135,818,513.47/12,287.32
6. Step 6: Final answer
   x = 11,053.55