Finding the Fourth Proportional to 11,782.79, 16,272.93 and 7,317.15

Step by Step Solution

1. Step 1: Write the proportion equation
   11,782.79 : 16,272.93 = 7,317.15 : x
2. Step 2: Convert to fraction form
   11,782.79/16,272.93 = 7,317.15/x
3. Step 3: Cross multiply
   11,782.79x = 16,272.93 × 7,317.15
4. Step 4: Simplify right side
   11,782.79x = 119,071,469.75
5. Step 5: Solve for x
   x = 119,071,469.75/11,782.79
6. Step 6: Final answer
   x = 10,105.54