Finding the Fourth Proportional to 12,952.70, 17,881.23 and 7,649.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,952.70 : 17,881.23 = 7,649.18 : x
2. Step 2: Convert to fraction form
   12,952.70/17,881.23 = 7,649.18/x
3. Step 3: Cross multiply
   12,952.70x = 17,881.23 × 7,649.18
4. Step 4: Simplify right side
   12,952.70x = 136,776,746.89
5. Step 5: Solve for x
   x = 136,776,746.89/12,952.70
6. Step 6: Final answer
   x = 10,559.71