Finding the Fourth Proportional to 91,781.59, 137,616.93 and 41,171.35

Step by Step Solution

1. Step 1: Write the proportion equation
   91,781.59 : 137,616.93 = 41,171.35 : x
2. Step 2: Convert to fraction form
   91,781.59/137,616.93 = 41,171.35/x
3. Step 3: Cross multiply
   91,781.59x = 137,616.93 × 41,171.35
4. Step 4: Simplify right side
   91,781.59x = 5,665,874,790.96
5. Step 5: Solve for x
   x = 5,665,874,790.96/91,781.59
6. Step 6: Final answer
   x = 61,732.15