Finding the Fourth Proportional to 12,620.16, 17,419.12 and 7,314.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,620.16 : 17,419.12 = 7,314.32 : x
2. Step 2: Convert to fraction form
   12,620.16/17,419.12 = 7,314.32/x
3. Step 3: Cross multiply
   12,620.16x = 17,419.12 × 7,314.32
4. Step 4: Simplify right side
   12,620.16x = 127,409,017.80
5. Step 5: Solve for x
   x = 127,409,017.80/12,620.16
6. Step 6: Final answer
   x = 10,095.67