Finding the Fourth Proportional to 12,943.31, 17,862.39 and 7,279.84

Step by Step Solution

1. Step 1: Write the proportion equation
   12,943.31 : 17,862.39 = 7,279.84 : x
2. Step 2: Convert to fraction form
   12,943.31/17,862.39 = 7,279.84/x
3. Step 3: Cross multiply
   12,943.31x = 17,862.39 × 7,279.84
4. Step 4: Simplify right side
   12,943.31x = 130,035,341.22
5. Step 5: Solve for x
   x = 130,035,341.22/12,943.31
6. Step 6: Final answer
   x = 10,046.53