Finding the Fourth Proportional to 12,613.88, 17,406.34 and 7,308.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,613.88 : 17,406.34 = 7,308.28 : x
2. Step 2: Convert to fraction form
   12,613.88/17,406.34 = 7,308.28/x
3. Step 3: Cross multiply
   12,613.88x = 17,406.34 × 7,308.28
4. Step 4: Simplify right side
   12,613.88x = 127,210,406.50
5. Step 5: Solve for x
   x = 127,210,406.50/12,613.88
6. Step 6: Final answer
   x = 10,084.95