Finding the Fourth Proportional to 9,116.15, 12,573.83 and 5,714.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,116.15 : 12,573.83 = 5,714.15 : x
2. Step 2: Convert to fraction form
   9,116.15/12,573.83 = 5,714.15/x
3. Step 3: Cross multiply
   9,116.15x = 12,573.83 × 5,714.15
4. Step 4: Simplify right side
   9,116.15x = 71,848,702.11
5. Step 5: Solve for x
   x = 71,848,702.11/9,116.15
6. Step 6: Final answer
   x = 7,881.48