Finding the Fourth Proportional to 10,611.63, 14,629.42 and 8,465.46

Step by Step Solution

1. Step 1: Write the proportion equation
   10,611.63 : 14,629.42 = 8,465.46 : x
2. Step 2: Convert to fraction form
   10,611.63/14,629.42 = 8,465.46/x
3. Step 3: Cross multiply
   10,611.63x = 14,629.42 × 8,465.46
4. Step 4: Simplify right side
   10,611.63x = 123,844,807.85
5. Step 5: Solve for x
   x = 123,844,807.85/10,611.63
6. Step 6: Final answer
   x = 11,670.66