Finding the Fourth Proportional to 91,453.56, 126,198.72 and 51,164.16

Step by Step Solution

1. Step 1: Write the proportion equation
   91,453.56 : 126,198.72 = 51,164.16 : x
2. Step 2: Convert to fraction form
   91,453.56/126,198.72 = 51,164.16/x
3. Step 3: Cross multiply
   91,453.56x = 126,198.72 × 51,164.16
4. Step 4: Simplify right side
   91,453.56x = 6,456,851,501.88
5. Step 5: Solve for x
   x = 6,456,851,501.88/91,453.56
6. Step 6: Final answer
   x = 70,602.52