Finding the Fourth Proportional to 12,036.93, 16,615.43 and 9,061.39

Step by Step Solution

1. Step 1: Write the proportion equation
   12,036.93 : 16,615.43 = 9,061.39 : x
2. Step 2: Convert to fraction form
   12,036.93/16,615.43 = 9,061.39/x
3. Step 3: Cross multiply
   12,036.93x = 16,615.43 × 9,061.39
4. Step 4: Simplify right side
   12,036.93x = 150,558,947.42
5. Step 5: Solve for x
   x = 150,558,947.42/12,036.93
6. Step 6: Final answer
   x = 12,508.09