Finding the Fourth Proportional to 72,986.48, 100,723.83 and 42,357.22

Step by Step Solution

1. Step 1: Write the proportion equation
   72,986.48 : 100,723.83 = 42,357.22 : x
2. Step 2: Convert to fraction form
   72,986.48/100,723.83 = 42,357.22/x
3. Step 3: Cross multiply
   72,986.48x = 100,723.83 × 42,357.22
4. Step 4: Simplify right side
   72,986.48x = 4,266,380,817.04
5. Step 5: Solve for x
   x = 4,266,380,817.04/72,986.48
6. Step 6: Final answer
   x = 58,454.40