Finding the Fourth Proportional to 47,931.86, 71,786.91 and 46,271.06

Step by Step Solution

1. Step 1: Write the proportion equation
   47,931.86 : 71,786.91 = 46,271.06 : x
2. Step 2: Convert to fraction form
   47,931.86/71,786.91 = 46,271.06/x
3. Step 3: Cross multiply
   47,931.86x = 71,786.91 × 46,271.06
4. Step 4: Simplify right side
   47,931.86x = 3,321,656,419.82
5. Step 5: Solve for x
   x = 3,321,656,419.82/47,931.86
6. Step 6: Final answer
   x = 69,299.55