Finding the Fourth Proportional to 50,717.61, 69,987.24 and 30,581.01

Step by Step Solution

1. Step 1: Write the proportion equation
   50,717.61 : 69,987.24 = 30,581.01 : x
2. Step 2: Convert to fraction form
   50,717.61/69,987.24 = 30,581.01/x
3. Step 3: Cross multiply
   50,717.61x = 69,987.24 × 30,581.01
4. Step 4: Simplify right side
   50,717.61x = 2,140,280,486.31
5. Step 5: Solve for x
   x = 2,140,280,486.31/50,717.61
6. Step 6: Final answer
   x = 42,199.95