Finding the Fourth Proportional to 91,711.45, 137,556.42 and 25,158.31

Step by Step Solution

1. Step 1: Write the proportion equation
   91,711.45 : 137,556.42 = 25,158.31 : x
2. Step 2: Convert to fraction form
   91,711.45/137,556.42 = 25,158.31/x
3. Step 3: Cross multiply
   91,711.45x = 137,556.42 × 25,158.31
4. Step 4: Simplify right side
   91,711.45x = 3,460,687,056.85
5. Step 5: Solve for x
   x = 3,460,687,056.85/91,711.45
6. Step 6: Final answer
   x = 37,734.51