Finding the Fourth Proportional to 12,611.94, 17,411.45 and 7,577.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,611.94 : 17,411.45 = 7,577.38 : x
2. Step 2: Convert to fraction form
   12,611.94/17,411.45 = 7,577.38/x
3. Step 3: Cross multiply
   12,611.94x = 17,411.45 × 7,577.38
4. Step 4: Simplify right side
   12,611.94x = 131,933,173.00
5. Step 5: Solve for x
   x = 131,933,173.00/12,611.94
6. Step 6: Final answer
   x = 10,460.97