Finding the Fourth Proportional to 91,954.38, 137,126.87 and 91,113.58

Step by Step Solution

1. Step 1: Write the proportion equation
   91,954.38 : 137,126.87 = 91,113.58 : x
2. Step 2: Convert to fraction form
   91,954.38/137,126.87 = 91,113.58/x
3. Step 3: Cross multiply
   91,954.38x = 137,126.87 × 91,113.58
4. Step 4: Simplify right side
   91,954.38x = 12,494,120,039.89
5. Step 5: Solve for x
   x = 12,494,120,039.89/91,954.38
6. Step 6: Final answer
   x = 135,873.04