Finding the Fourth Proportional to 91,081.84, 136,639.23 and 41,185.45

Step by Step Solution

1. Step 1: Write the proportion equation
   91,081.84 : 136,639.23 = 41,185.45 : x
2. Step 2: Convert to fraction form
   91,081.84/136,639.23 = 41,185.45/x
3. Step 3: Cross multiply
   91,081.84x = 136,639.23 × 41,185.45
4. Step 4: Simplify right side
   91,081.84x = 5,627,548,175.20
5. Step 5: Solve for x
   x = 5,627,548,175.20/91,081.84
6. Step 6: Final answer
   x = 61,785.62