Finding the Fourth Proportional to 91,528.82, 126,320.37 and 55,739.78

Step by Step Solution

1. Step 1: Write the proportion equation
   91,528.82 : 126,320.37 = 55,739.78 : x
2. Step 2: Convert to fraction form
   91,528.82/126,320.37 = 55,739.78/x
3. Step 3: Cross multiply
   91,528.82x = 126,320.37 × 55,739.78
4. Step 4: Simplify right side
   91,528.82x = 7,041,069,633.32
5. Step 5: Solve for x
   x = 7,041,069,633.32/91,528.82
6. Step 6: Final answer
   x = 76,927.35