Finding the Fourth Proportional to 11,886.48, 17,804.18 and 7,714.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,886.48 : 17,804.18 = 7,714.31 : x
2. Step 2: Convert to fraction form
   11,886.48/17,804.18 = 7,714.31/x
3. Step 3: Cross multiply
   11,886.48x = 17,804.18 × 7,714.31
4. Step 4: Simplify right side
   11,886.48x = 137,346,894.08
5. Step 5: Solve for x
   x = 137,346,894.08/11,886.48
6. Step 6: Final answer
   x = 11,554.88