Finding the Fourth Proportional to 8,910.94, 12,298.01 and 5,134.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,910.94 : 12,298.01 = 5,134.25 : x
2. Step 2: Convert to fraction form
   8,910.94/12,298.01 = 5,134.25/x
3. Step 3: Cross multiply
   8,910.94x = 12,298.01 × 5,134.25
4. Step 4: Simplify right side
   8,910.94x = 63,141,039.93
5. Step 5: Solve for x
   x = 63,141,039.93/8,910.94
6. Step 6: Final answer
   x = 7,085.79