Finding the Fourth Proportional to 10,945.94, 15,090.30 and 8,255.93

Step by Step Solution

1. Step 1: Write the proportion equation
   10,945.94 : 15,090.30 = 8,255.93 : x
2. Step 2: Convert to fraction form
   10,945.94/15,090.30 = 8,255.93/x
3. Step 3: Cross multiply
   10,945.94x = 15,090.30 × 8,255.93
4. Step 4: Simplify right side
   10,945.94x = 124,584,385.03
5. Step 5: Solve for x
   x = 124,584,385.03/10,945.94
6. Step 6: Final answer
   x = 11,381.79