Finding the Fourth Proportional to 11,892.51, 16,411.68 and 6,587.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,892.51 : 16,411.68 = 6,587.31 : x
2. Step 2: Convert to fraction form
   11,892.51/16,411.68 = 6,587.31/x
3. Step 3: Cross multiply
   11,892.51x = 16,411.68 × 6,587.31
4. Step 4: Simplify right side
   11,892.51x = 108,108,823.78
5. Step 5: Solve for x
   x = 108,108,823.78/11,892.51
6. Step 6: Final answer
   x = 9,090.50