Finding the Fourth Proportional to 91,109.27, 136,703.37 and 48,940.15

Step by Step Solution

1. Step 1: Write the proportion equation
   91,109.27 : 136,703.37 = 48,940.15 : x
2. Step 2: Convert to fraction form
   91,109.27/136,703.37 = 48,940.15/x
3. Step 3: Cross multiply
   91,109.27x = 136,703.37 × 48,940.15
4. Step 4: Simplify right side
   91,109.27x = 6,690,283,433.31
5. Step 5: Solve for x
   x = 6,690,283,433.31/91,109.27
6. Step 6: Final answer
   x = 73,431.42