Finding the Fourth Proportional to 91,363.39, 137,028.34 and 41,431.48

Step by Step Solution

1. Step 1: Write the proportion equation
   91,363.39 : 137,028.34 = 41,431.48 : x
2. Step 2: Convert to fraction form
   91,363.39/137,028.34 = 41,431.48/x
3. Step 3: Cross multiply
   91,363.39x = 137,028.34 × 41,431.48
4. Step 4: Simplify right side
   91,363.39x = 5,677,286,928.14
5. Step 5: Solve for x
   x = 5,677,286,928.14/91,363.39
6. Step 6: Final answer
   x = 62,139.63