Finding the Fourth Proportional to 11,914.20, 16,404.21 and 10,117.94

Step by Step Solution

1. Step 1: Write the proportion equation
   11,914.20 : 16,404.21 = 10,117.94 : x
2. Step 2: Convert to fraction form
   11,914.20/16,404.21 = 10,117.94/x
3. Step 3: Cross multiply
   11,914.20x = 16,404.21 × 10,117.94
4. Step 4: Simplify right side
   11,914.20x = 165,976,730.51
5. Step 5: Solve for x
   x = 165,976,730.51/11,914.20
6. Step 6: Final answer
   x = 13,931.00