Finding the Fourth Proportional to 30,130.82, 45,196.49 and 7,947.35

Step by Step Solution

1. Step 1: Write the proportion equation
   30,130.82 : 45,196.49 = 7,947.35 : x
2. Step 2: Convert to fraction form
   30,130.82/45,196.49 = 7,947.35/x
3. Step 3: Cross multiply
   30,130.82x = 45,196.49 × 7,947.35
4. Step 4: Simplify right side
   30,130.82x = 359,192,118.69
5. Step 5: Solve for x
   x = 359,192,118.69/30,130.82
6. Step 6: Final answer
   x = 11,921.09