Finding the Fourth Proportional to 91,984.52, 126,939.78 and 55,685.49

Step by Step Solution

1. Step 1: Write the proportion equation
   91,984.52 : 126,939.78 = 55,685.49 : x
2. Step 2: Convert to fraction form
   91,984.52/126,939.78 = 55,685.49/x
3. Step 3: Cross multiply
   91,984.52x = 126,939.78 × 55,685.49
4. Step 4: Simplify right side
   91,984.52x = 7,068,703,215.09
5. Step 5: Solve for x
   x = 7,068,703,215.09/91,984.52
6. Step 6: Final answer
   x = 76,846.66