Finding the Fourth Proportional to 12,949.17, 17,858.67 and 10,112.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,949.17 : 17,858.67 = 10,112.15 : x
2. Step 2: Convert to fraction form
   12,949.17/17,858.67 = 10,112.15/x
3. Step 3: Cross multiply
   12,949.17x = 17,858.67 × 10,112.15
4. Step 4: Simplify right side
   12,949.17x = 180,589,460.55
5. Step 5: Solve for x
   x = 180,589,460.55/12,949.17
6. Step 6: Final answer
   x = 13,946.03