Finding the Fourth Proportional to 14,416.17, 19,894.91 and 9,109.05

Step by Step Solution

1. Step 1: Write the proportion equation
   14,416.17 : 19,894.91 = 9,109.05 : x
2. Step 2: Convert to fraction form
   14,416.17/19,894.91 = 9,109.05/x
3. Step 3: Cross multiply
   14,416.17x = 19,894.91 × 9,109.05
4. Step 4: Simplify right side
   14,416.17x = 181,223,684.39
5. Step 5: Solve for x
   x = 181,223,684.39/14,416.17
6. Step 6: Final answer
   x = 12,570.86