Finding the Fourth Proportional to 12,407.14, 17,116.98 and 7,099.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,407.14 : 17,116.98 = 7,099.12 : x
2. Step 2: Convert to fraction form
   12,407.14/17,116.98 = 7,099.12/x
3. Step 3: Cross multiply
   12,407.14x = 17,116.98 × 7,099.12
4. Step 4: Simplify right side
   12,407.14x = 121,515,495.06
5. Step 5: Solve for x
   x = 121,515,495.06/12,407.14
6. Step 6: Final answer
   x = 9,794.00