Finding the Fourth Proportional to 66,642.72, 91,996.56 and 50,727.84

Step by Step Solution

1. Step 1: Write the proportion equation
   66,642.72 : 91,996.56 = 50,727.84 : x
2. Step 2: Convert to fraction form
   66,642.72/91,996.56 = 50,727.84/x
3. Step 3: Cross multiply
   66,642.72x = 91,996.56 × 50,727.84
4. Step 4: Simplify right side
   66,642.72x = 4,666,786,776.23
5. Step 5: Solve for x
   x = 4,666,786,776.23/66,642.72
6. Step 6: Final answer
   x = 70,026.96