Finding the Fourth Proportional to 91,501.50, 126,270.83 and 51,215.25

Step by Step Solution

1. Step 1: Write the proportion equation
   91,501.50 : 126,270.83 = 51,215.25 : x
2. Step 2: Convert to fraction form
   91,501.50/126,270.83 = 51,215.25/x
3. Step 3: Cross multiply
   91,501.50x = 126,270.83 × 51,215.25
4. Step 4: Simplify right side
   91,501.50x = 6,466,991,978.94
5. Step 5: Solve for x
   x = 6,466,991,978.94/91,501.50
6. Step 6: Final answer
   x = 70,676.35