Finding the Fourth Proportional to 12,265.83, 18,404.42 and 7,591.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,265.83 : 18,404.42 = 7,591.32 : x
2. Step 2: Convert to fraction form
   12,265.83/18,404.42 = 7,591.32/x
3. Step 3: Cross multiply
   12,265.83x = 18,404.42 × 7,591.32
4. Step 4: Simplify right side
   12,265.83x = 139,713,803.68
5. Step 5: Solve for x
   x = 139,713,803.68/12,265.83
6. Step 6: Final answer
   x = 11,390.49