Finding the Fourth Proportional to 12,385.24, 17,085.94 and 7,906.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,385.24 : 17,085.94 = 7,906.75 : x
2. Step 2: Convert to fraction form
   12,385.24/17,085.94 = 7,906.75/x
3. Step 3: Cross multiply
   12,385.24x = 17,085.94 × 7,906.75
4. Step 4: Simplify right side
   12,385.24x = 135,094,256.10
5. Step 5: Solve for x
   x = 135,094,256.10/12,385.24
6. Step 6: Final answer
   x = 10,907.68