Finding the Fourth Proportional to 91,871.56, 126,775 and 55,586.52

Step by Step Solution

1. Step 1: Write the proportion equation
   91,871.56 : 126,775 = 55,586.52 : x
2. Step 2: Convert to fraction form
   91,871.56/126,775 = 55,586.52/x
3. Step 3: Cross multiply
   91,871.56x = 126,775 × 55,586.52
4. Step 4: Simplify right side
   91,871.56x = 7,046,981,073
5. Step 5: Solve for x
   x = 7,046,981,073/91,871.56
6. Step 6: Final answer
   x = 76,704.71