Finding the Fourth Proportional to 12,616.14, 17,410.86 and 7,312.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,616.14 : 17,410.86 = 7,312.62 : x
2. Step 2: Convert to fraction form
   12,616.14/17,410.86 = 7,312.62/x
3. Step 3: Cross multiply
   12,616.14x = 17,410.86 × 7,312.62
4. Step 4: Simplify right side
   12,616.14x = 127,319,003.05
5. Step 5: Solve for x
   x = 127,319,003.05/12,616.14
6. Step 6: Final answer
   x = 10,091.76