Finding the Fourth Proportional to 8,756.90, 12,084.51 and 5,613.08

Step by Step Solution

1. Step 1: Write the proportion equation
   8,756.90 : 12,084.51 = 5,613.08 : x
2. Step 2: Convert to fraction form
   8,756.90/12,084.51 = 5,613.08/x
3. Step 3: Cross multiply
   8,756.90x = 12,084.51 × 5,613.08
4. Step 4: Simplify right side
   8,756.90x = 67,831,321.39
5. Step 5: Solve for x
   x = 67,831,321.39/8,756.90
6. Step 6: Final answer
   x = 7,746.05