Finding the Fourth Proportional to 12,947.96, 17,869.82 and 7,357.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,947.96 : 17,869.82 = 7,357.88 : x
2. Step 2: Convert to fraction form
   12,947.96/17,869.82 = 7,357.88/x
3. Step 3: Cross multiply
   12,947.96x = 17,869.82 × 7,357.88
4. Step 4: Simplify right side
   12,947.96x = 131,483,991.18
5. Step 5: Solve for x
   x = 131,483,991.18/12,947.96
6. Step 6: Final answer
   x = 10,154.80