Finding the Fourth Proportional to 9,116.84, 12,581.56 and 5,340.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,116.84 : 12,581.56 = 5,340.34 : x
2. Step 2: Convert to fraction form
   9,116.84/12,581.56 = 5,340.34/x
3. Step 3: Cross multiply
   9,116.84x = 12,581.56 × 5,340.34
4. Step 4: Simplify right side
   9,116.84x = 67,189,808.13
5. Step 5: Solve for x
   x = 67,189,808.13/9,116.84
6. Step 6: Final answer
   x = 7,369.86