Finding the Fourth Proportional to 10,783.68, 14,889.58 and 10,611.45

Step by Step Solution

1. Step 1: Write the proportion equation
   10,783.68 : 14,889.58 = 10,611.45 : x
2. Step 2: Convert to fraction form
   10,783.68/14,889.58 = 10,611.45/x
3. Step 3: Cross multiply
   10,783.68x = 14,889.58 × 10,611.45
4. Step 4: Simplify right side
   10,783.68x = 158,000,033.69
5. Step 5: Solve for x
   x = 158,000,033.69/10,783.68
6. Step 6: Final answer
   x = 14,651.78