Finding the Fourth Proportional to 12,617.34, 17,403.27 and 7,312.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,617.34 : 17,403.27 = 7,312.25 : x
2. Step 2: Convert to fraction form
   12,617.34/17,403.27 = 7,312.25/x
3. Step 3: Cross multiply
   12,617.34x = 17,403.27 × 7,312.25
4. Step 4: Simplify right side
   12,617.34x = 127,257,017.55
5. Step 5: Solve for x
   x = 127,257,017.55/12,617.34
6. Step 6: Final answer
   x = 10,085.88