Finding the Fourth Proportional to 12,917.30, 17,827.82 and 7,884.44

Step by Step Solution

1. Step 1: Write the proportion equation
   12,917.30 : 17,827.82 = 7,884.44 : x
2. Step 2: Convert to fraction form
   12,917.30/17,827.82 = 7,884.44/x
3. Step 3: Cross multiply
   12,917.30x = 17,827.82 × 7,884.44
4. Step 4: Simplify right side
   12,917.30x = 140,562,457.33
5. Step 5: Solve for x
   x = 140,562,457.33/12,917.30
6. Step 6: Final answer
   x = 10,881.72