Finding the Fourth Proportional to 66,456.96, 91,710.77 and 37,776.81

Step by Step Solution

1. Step 1: Write the proportion equation
   66,456.96 : 91,710.77 = 37,776.81 : x
2. Step 2: Convert to fraction form
   66,456.96/91,710.77 = 37,776.81/x
3. Step 3: Cross multiply
   66,456.96x = 91,710.77 × 37,776.81
4. Step 4: Simplify right side
   66,456.96x = 3,464,540,144.36
5. Step 5: Solve for x
   x = 3,464,540,144.36/66,456.96
6. Step 6: Final answer
   x = 52,132.09