Finding the Fourth Proportional to 71,462.82, 98,618.03 and 39,196.79

Step by Step Solution

1. Step 1: Write the proportion equation
   71,462.82 : 98,618.03 = 39,196.79 : x
2. Step 2: Convert to fraction form
   71,462.82/98,618.03 = 39,196.79/x
3. Step 3: Cross multiply
   71,462.82x = 98,618.03 × 39,196.79
4. Step 4: Simplify right side
   71,462.82x = 3,865,510,039.86
5. Step 5: Solve for x
   x = 3,865,510,039.86/71,462.82
6. Step 6: Final answer
   x = 54,091.20