Finding the Fourth Proportional to 12,923.57, 17,811.02 and 10,089.47

Step by Step Solution

1. Step 1: Write the proportion equation
   12,923.57 : 17,811.02 = 10,089.47 : x
2. Step 2: Convert to fraction form
   12,923.57/17,811.02 = 10,089.47/x
3. Step 3: Cross multiply
   12,923.57x = 17,811.02 × 10,089.47
4. Step 4: Simplify right side
   12,923.57x = 179,703,662.90
5. Step 5: Solve for x
   x = 179,703,662.90/12,923.57
6. Step 6: Final answer
   x = 13,905.12