Finding the Fourth Proportional to 12,491.88, 18,743.82 and 7,298.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,491.88 : 18,743.82 = 7,298.16 : x
2. Step 2: Convert to fraction form
   12,491.88/18,743.82 = 7,298.16/x
3. Step 3: Cross multiply
   12,491.88x = 18,743.82 × 7,298.16
4. Step 4: Simplify right side
   12,491.88x = 136,795,397.37
5. Step 5: Solve for x
   x = 136,795,397.37/12,491.88
6. Step 6: Final answer
   x = 10,950.75