Finding the Fourth Proportional to 91,140.72, 136,715.17 and 27,956.24

Step by Step Solution

1. Step 1: Write the proportion equation
   91,140.72 : 136,715.17 = 27,956.24 : x
2. Step 2: Convert to fraction form
   91,140.72/136,715.17 = 27,956.24/x
3. Step 3: Cross multiply
   91,140.72x = 136,715.17 × 27,956.24
4. Step 4: Simplify right side
   91,140.72x = 3,822,042,104.16
5. Step 5: Solve for x
   x = 3,822,042,104.16/91,140.72
6. Step 6: Final answer
   x = 41,935.61