Finding the Fourth Proportional to 16,756.89, 23,124.78 and 9,100.17

Step by Step Solution

1. Step 1: Write the proportion equation
   16,756.89 : 23,124.78 = 9,100.17 : x
2. Step 2: Convert to fraction form
   16,756.89/23,124.78 = 9,100.17/x
3. Step 3: Cross multiply
   16,756.89x = 23,124.78 × 9,100.17
4. Step 4: Simplify right side
   16,756.89x = 210,439,429.21
5. Step 5: Solve for x
   x = 210,439,429.21/16,756.89
6. Step 6: Final answer
   x = 12,558.38