Finding the Fourth Proportional to 71,933.35, 99,268.15 and 40,101.57

Step by Step Solution

1. Step 1: Write the proportion equation
   71,933.35 : 99,268.15 = 40,101.57 : x
2. Step 2: Convert to fraction form
   71,933.35/99,268.15 = 40,101.57/x
3. Step 3: Cross multiply
   71,933.35x = 99,268.15 × 40,101.57
4. Step 4: Simplify right side
   71,933.35x = 3,980,808,666.00
5. Step 5: Solve for x
   x = 3,980,808,666.00/71,933.35
6. Step 6: Final answer
   x = 55,340.24