Finding the Fourth Proportional to 91,103.80, 136,693.50 and 41,149.48

Step by Step Solution

1. Step 1: Write the proportion equation
   91,103.80 : 136,693.50 = 41,149.48 : x
2. Step 2: Convert to fraction form
   91,103.80/136,693.50 = 41,149.48/x
3. Step 3: Cross multiply
   91,103.80x = 136,693.50 × 41,149.48
4. Step 4: Simplify right side
   91,103.80x = 5,624,866,444.38
5. Step 5: Solve for x
   x = 5,624,866,444.38/91,103.80
6. Step 6: Final answer
   x = 61,741.29