Finding the Fourth Proportional to 8,610.84, 12,899.45 and 5,936.15

Step by Step Solution

1. Step 1: Write the proportion equation
   8,610.84 : 12,899.45 = 5,936.15 : x
2. Step 2: Convert to fraction form
   8,610.84/12,899.45 = 5,936.15/x
3. Step 3: Cross multiply
   8,610.84x = 12,899.45 × 5,936.15
4. Step 4: Simplify right side
   8,610.84x = 76,573,117.21
5. Step 5: Solve for x
   x = 76,573,117.21/8,610.84
6. Step 6: Final answer
   x = 8,892.64