Finding the Fourth Proportional to 7,677.74, 10,587.96 and 7,111.82

Step by Step Solution

1. Step 1: Write the proportion equation
   7,677.74 : 10,587.96 = 7,111.82 : x
2. Step 2: Convert to fraction form
   7,677.74/10,587.96 = 7,111.82/x
3. Step 3: Cross multiply
   7,677.74x = 10,587.96 × 7,111.82
4. Step 4: Simplify right side
   7,677.74x = 75,299,612.75
5. Step 5: Solve for x
   x = 75,299,612.75/7,677.74
6. Step 6: Final answer
   x = 9,807.53