Finding the Fourth Proportional to 9,146.01, 12,621.32 and 5,112.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,146.01 : 12,621.32 = 5,112.82 : x
2. Step 2: Convert to fraction form
   9,146.01/12,621.32 = 5,112.82/x
3. Step 3: Cross multiply
   9,146.01x = 12,621.32 × 5,112.82
4. Step 4: Simplify right side
   9,146.01x = 64,530,524.54
5. Step 5: Solve for x
   x = 64,530,524.54/9,146.01
6. Step 6: Final answer
   x = 7,055.59