Finding the Fourth Proportional to 91,760, 126,630.72 and 52,016

Step by Step Solution

1. Step 1: Write the proportion equation
   91,760 : 126,630.72 = 52,016 : x
2. Step 2: Convert to fraction form
   91,760/126,630.72 = 52,016/x
3. Step 3: Cross multiply
   91,760x = 126,630.72 × 52,016
4. Step 4: Simplify right side
   91,760x = 6,586,823,531.52
5. Step 5: Solve for x
   x = 6,586,823,531.52/91,760
6. Step 6: Final answer
   x = 71,783.17