Finding the Fourth Proportional to 9,156.38, 13,736.00 and 2,917.79

Step by Step Solution

1. Step 1: Write the proportion equation
   9,156.38 : 13,736.00 = 2,917.79 : x
2. Step 2: Convert to fraction form
   9,156.38/13,736.00 = 2,917.79/x
3. Step 3: Cross multiply
   9,156.38x = 13,736.00 × 2,917.79
4. Step 4: Simplify right side
   9,156.38x = 40,078,680.17
5. Step 5: Solve for x
   x = 40,078,680.17/9,156.38
6. Step 6: Final answer
   x = 4,377.13