Finding the Fourth Proportional to 55,147.04, 76,128.72 and 35,286.56

Step by Step Solution

1. Step 1: Write the proportion equation
   55,147.04 : 76,128.72 = 35,286.56 : x
2. Step 2: Convert to fraction form
   55,147.04/76,128.72 = 35,286.56/x
3. Step 3: Cross multiply
   55,147.04x = 76,128.72 × 35,286.56
4. Step 4: Simplify right side
   55,147.04x = 2,686,320,646.00
5. Step 5: Solve for x
   x = 2,686,320,646.00/55,147.04
6. Step 6: Final answer
   x = 48,711.96