Finding the Fourth Proportional to 91,878.87, 126,804.57 and 56,061.27

Step by Step Solution

1. Step 1: Write the proportion equation
   91,878.87 : 126,804.57 = 56,061.27 : x
2. Step 2: Convert to fraction form
   91,878.87/126,804.57 = 56,061.27/x
3. Step 3: Cross multiply
   91,878.87x = 126,804.57 × 56,061.27
4. Step 4: Simplify right side
   91,878.87x = 7,108,825,236.00
5. Step 5: Solve for x
   x = 7,108,825,236.00/91,878.87
6. Step 6: Final answer
   x = 77,371.71